Abrevieri

Update 69Gary Whitmire

DRAFTING MANUALAbbreviations for Use on Drawings and Technical

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Genium Publishing Corporation

1.0 Abbreviations in Alphabetical Order Based on the Term

Term Drawing TextA

a programming language .......................................................................... APL...............APLabandon ship ......................................................................................... ABDNSHP......abdnshpabbreviate............................................................................................. ABBR ............abbrabnormal .............................................................................................. ABNL ............abnlabout ................................................................................................... ABT ..............abtabove .................................................................................................. ABV ..............abvabove baseline ....................................................................................... ABL ..............ablabove water .......................................................................................... AW................awabrasive ............................................................................................... ABRSV ..........abrsvabrasive-resistant.................................................................................... ABRSVRES ....abrsvresabsolute ............................................................................................... ABS...............absabsolute ceiling...................................................................................... ABSCLG ........absclgabsorption ............................................................................................ ABSORB ........absorbabstract ................................................................................................ ABSTR...........abstraccelerate ............................................................................................. ACCEL ..........accelaccelerator ............................................................................................ ACLTR ..........acltraccelerometer ........................................................................................ ACCLRM .......acclrmaccept.................................................................................................. ACPT.............acptacceptable quality level............................................................................ AQL ..............AQLacceptable quality test ............................................................................. AQT ..............AQTacceptable reliability level ........................................................................ ARL ..............ARLacceptor ............................................................................................... ACPTR...........acptraccess.................................................................................................. ACS...............acsaccess opening....................................................................................... AO ................AOaccess panel .......................................................................................... AP.................APaccess time ........................................................................................... ACST.............ACSTaccessory.............................................................................................. ACCESS.........accessaccident ............................................................................................... ACDT ............acdtaccommodate ........................................................................................ ACCOM .........accomaccordance with ..................................................................................... AW................awaccount ................................................................................................ ACCT ............acctaccumulate ........................................................................................... ACCUM .........accumaccumulator .......................................................................................... ACC ..............accaccumulator switch ................................................................................. ACS...............ACSaccurate ............................................................................................... ACCUR..........accuracetate ................................................................................................. ACTT.............acttacetate [insul] (see cellulose acetate)acetylene .............................................................................................. ACET.............acetacid waste............................................................................................. AW................awacid-resisting......................................................................................... AR ................ARacidproof.............................................................................................. AP.................apacidproof floor....................................................................................... APF ...............APFacknowledge ......................................................................................... ACK ..............ackacoustic................................................................................................ ACST.............acstacoustic mine sweeping ........................................................................... AMNSWP.......AMNSWPacoustical plaster ceiling .......................................................................... APC...............APCacoustical tile ceiling............................................................................... ATC ..............ATCacquire................................................................................................. ACQ ..............acqacquisition ............................................................................................ ACQ ..............acqacquisition advice code............................................................................ AAC ..............AACacross .................................................................................................. ACR ..............acr

Update 56

The following subsection has been reformatted to improve quality; the content has not been altered: 13.3

Update 59

The following subsection has been reformatted to improve quality; the content has not been altered: 13.2

Update 69

The following subsection has been updated in this version: 13.1



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across flats ........................................................................................... ACRFLT ........ ACRFLTacrylic ................................................................................................. ACRYL.......... acrylaction .................................................................................................. ACTN............ actnaction cutout ......................................................................................... ACO.............. acoaction time ........................................................................................... AT ................ atactivate................................................................................................ ACTVT.......... actvtactivation analysis .................................................................................. ACTVNANAL. actvnanalactivator............................................................................................... ACTVTR........ actvtractive element group............................................................................... AEG .............. AEGactivity ................................................................................................ ACT .............. actactual .................................................................................................. ACTL ............ actlactuate................................................................................................. ACTE ............ acteactuating .............................................................................................. ACTG............ actgactuator ............................................................................................... ACTR ............ actradaptation ............................................................................................ ADAPT.......... adaptadapter ................................................................................................ ADPTR .......... adptradapter booster ...................................................................................... AB ................ ABAdaptive Flight Control Systems ............................................................... AFCS............. AFCSaddendum ............................................................................................ ADD.............. addaddition ............................................................................................... ADD.............. addadditional ............................................................................................. ADDL............ addladditive ............................................................................................... ADDT............ addtaddress ................................................................................................ ADRS ............ adrsadhere ................................................................................................. ADH.............. adhadhesive............................................................................................... ADH.............. adhadjacent ............................................................................................... ADJ............... adjadjust .................................................................................................. ADJ............... adjadjustable speed..................................................................................... ADJSP ........... adjspadminister ............................................................................................ ADMIN.......... adminadmitting ............................................................................................. ADMG........... admgAdoptive Flight Control System ................................................................ AFCS............. AFCSadsorbent ............................................................................................. ADSORB........ adsorbadvance ............................................................................................... ADV.............. advadvance alteration notice.......................................................................... AAN.............. AANadvance change notice............................................................................. ACN.............. ACNadvance engineering change proposal ......................................................... AECP ............ AECPadvance engineering order........................................................................ AEO .............. AEOadvance material request.......................................................................... AMR ............. AMRadvanced battery acquisition radar.............................................................. ABAR............ ABARadvertisement........................................................................................ AD ................ adadvisory............................................................................................... ADVSY.......... advsyaerodynamic ......................................................................................... AERODYN..... aerodynaerodynamic center ................................................................................ AC ................ ACaerological ........................................................................................... AEROL.......... aerolaeronautic ............................................................................................ AERO............ aeroaeronautical material specification ............................................................. AMS.............. AMSaeronautical national taper pipe thread ........................................................ ANPT ............ ANPTaeronautical recommended practice ............................................................ ARP .............. ARPaeronautical standards group..................................................................... ASG .............. ASGaerospace ground equipment..................................................................... AGE .............. AGEafter .................................................................................................... AFT............... aftafter cooler ........................................................................................... AFTCLR ........ AFTCLRafter engine room................................................................................... AER .............. AER



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after peak ............................................................................................. AP.................APafter perpendicular.................................................................................. AP.................APafter torpedo room.................................................................................. ATRM............ATRMafterburner............................................................................................ AB ................abagent ................................................................................................... AGT ..............agtaggregate.............................................................................................. AGGR............aggragitate ................................................................................................. AG ................agaileron ................................................................................................. AIL................ailair blast................................................................................................ AB ................abair blast circuit breaker ............................................................................ ABCB ............ABCBair blast transformer ................................................................................ ABT ..............ABTair circuit breaker ................................................................................... ACB ..............ACBair circulating ........................................................................................ ACIRC ...........acircair cleaner............................................................................................. AIRCLNR.......AIRCLNRair conditioning...................................................................................... AC ................acair data computing .................................................................................. ADC ..............ADCair escape ............................................................................................. AE.................AEAir Force-Navy...................................................................................... AN ................ANAir Force-Navy Aeronautical .................................................................... ANA..............ANAAir Force-Navy Design............................................................................ AND..............ANDAir Force-Navy-Civil .............................................................................. ANC ..............ANCair header ............................................................................................. AHDR............ahdrair induction.......................................................................................... AINDTN.........AINDTNair installations ...................................................................................... AI..................AIair lock ................................................................................................ AL.................ALair movement data .................................................................................. AMD .............AMDair munitions ......................................................................................... AMUN ...........amunair over ................................................................................................ AO ................AOair over hydraulic ................................................................................... AH ................ahair passage............................................................................................ AP.................APair route traffic control center .................................................................... ARTCC ..........ARTCCair shutoff............................................................................................. ASHOF ..........ASHOFair shutter ............................................................................................. AIRSHTR .......AIRSHTRair starting ............................................................................................ ASTRG ..........ASTRGair traffic control .................................................................................... ATC ..............ATCair transport radio ................................................................................... ATR ..............ATRair turbine motor .................................................................................... ATM..............atmair-break switch ..................................................................................... ABSW............abswair-condition ......................................................................................... AIRCOND ......aircondair-cooled ............................................................................................. ACLD ............acldair-position indicator ............................................................................... API................APIair-to-air............................................................................................... AA ................aaair-to-air identification............................................................................. AAI ...............AAIair-to-air-missile .................................................................................... AAM .............AAMair-to-ground ......................................................................................... AG ................AGair-to-surface missile............................................................................... ASM..............ASMair-to-underwater missile.......................................................................... AUM .............AUMairborne ............................................................................................... ABN ..............abnairborne early warning............................................................................. AEW..............AEWairborne interceptor................................................................................. AI..................AIairborne surveillance radar........................................................................ ASR...............ASRaircraft................................................................................................. ACFT.............acftaircraft approach light ............................................................................. AAL ..............AAL



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aircraft control and warning...................................................................... ACW ............. acwairframe............................................................................................... AFR .............. afrairframe-mounted accessory drive.............................................................. AMAD........... AMADairplane ............................................................................................... APL............... aplairport ................................................................................................. APRT ............ aprtairport surveillance radar ......................................................................... APSR............. APSRairscoop............................................................................................... AS ................ asairspeed ............................................................................................... AS ................ asairspeed indicator................................................................................... AI ................. AIairtight ................................................................................................ AT ................ atalarm .................................................................................................. ALM ............. almalarm check valve .................................................................................. ACV.............. ACValclad .................................................................................................. ALCD............ alcdalcohol ................................................................................................ ALC .............. alcalgebra ................................................................................................ ALG .............. algalgebraic compiler and translator ............................................................... ACT .............. ACTalgorithm ............................................................................................. ALGO............ algoalgorithmic-oriented language ................................................................... ALGOL.......... ALGOLalidade ................................................................................................ ALDD............ alddalignment ............................................................................................. ALIGN........... alignalkaline................................................................................................ ALK .............. alkalkalinity.............................................................................................. ALKY............ alkyall-number calling .................................................................................. ANC.............. ANCallocate................................................................................................ ALLOC.......... allocallowance............................................................................................. ALLOW ......... allowallowance parts list ................................................................................. APL............... APLalloy ................................................................................................... ALY .............. alyalloy-steel protective plating ..................................................................... ASPP ............. ASPPalphabetical .......................................................................................... ALPHA.......... alphaalphanumeric output ............................................................................... ANO.............. ANOalteration.............................................................................................. ALTRN.......... altrnaltered ................................................................................................. ALTRD.......... altrdalternate............................................................................................... ALTN ............ altnalternating current .................................................................................. AC ................ ACalternating current synchronous ................................................................. ACS .............. ACSalternation ............................................................................................ ALT .............. altalternative ............................................................................................ ALTNV.......... altnvalternator ............................................................................................. ALTNTR........ altntraltimeter .............................................................................................. ALTM............ altmaltitude ................................................................................................ ALT .............. altaltitude transmitting equipment ................................................................. ALTE ............ altealuminum............................................................................................. AL ................ ALaluminum conductor steel-reinforced .......................................................... ACRS ............ ACSRamalgam .............................................................................................. AMLG ........... amlgamateur television .................................................................................. ATV .............. ATVamatol ................................................................................................. AM ............... amamber.................................................................................................. AMB ............. ambamber light ........................................................................................... AL ................ ALambient ............................................................................................... AMB ............. ambambulance............................................................................................ AMB ............. ambamendment........................................................................................... AMEND......... amendAmerican ............................................................................................. AMER ........... AmerAmerican Gage Design Standard ............................................................... AGDS............ AGDS



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American National Standard Code for Information Interchange ......................... ASCII.............ASCIIAmerican Standard Elevator Code.............................................................. ASEC.............ASECAmerican Steel Wire Gage ....................................................................... ASWG ...........ASWGAmerican Wire Gage............................................................................... AWG .............AWGammeter............................................................................................... AMM.............ammammeter switch...................................................................................... AS.................ASammonia .............................................................................................. AMNA ...........amnaammonium nitrate .................................................................................. AMNIT ..........amnitammunition........................................................................................... AMMO...........ammoammunition hoist ................................................................................... AMOHST .......AMOHSTammunition hoist drive ............................................................................ AMOHSTDR...AMOHSTDRammunition identification code.................................................................. AIC ...............AICammunition rack .................................................................................... AMMORK ......AMMORKamount ................................................................................................ AMT..............amtampere................................................................................................. AMP..............ampampere demand meter ............................................................................. AD ................ADampere [turn] ........................................................................................ AT.................atampere-hour.......................................................................................... AMPHR .........amphrampere-hour meter ................................................................................. AHM .............AHMamphibian ............................................................................................ AMPH............amphamphibious ........................................................................................... AMPH............amphamphibious truck.................................................................................... AMPHTRK .....amphtrkamplidyne ............................................................................................ AMPLDN .......ampldnamplidyne generator................................................................................ AMPLG..........AMPLGamplidyne motor generator ....................................................................... AMPLMG.......AMPLMGamplifier .............................................................................................. AMPL ............amplamplitude ............................................................................................. AMPTD..........amptdamplitude modulation.............................................................................. AM................AManalog ................................................................................................. ANLG ............anlganalog-to-digital..................................................................................... AD ................adanalog-to-digital converter........................................................................ ADC ..............ADCanalysis................................................................................................ ANAL ............analanalytical rework program ........................................................................ ARP...............ARPanalyze ................................................................................................ ANALY..........analyanchor ................................................................................................. AHR ..............ahranchor bolt ........................................................................................... AB ................ABanchor light........................................................................................... ANLT ............anltanchor order.......................................................................................... AOR ..............aoranchor windlass ..................................................................................... AWNDLS .......AWNDLSanchored filament................................................................................... ANCFIL .........ANCFILand so forth........................................................................................... ETC...............etcanechoic............................................................................................... ANCH............anchangiocardiogram .................................................................................... ACG ..............acgangle order ........................................................................................... ANLOR..........ANLORangle stop valve ..................................................................................... ASV ..............ASVangular ................................................................................................ ANLR ............anlranhydride ............................................................................................. ANHYD .........anhydanhydrous............................................................................................. ANHYD .........nhydanneal.................................................................................................. ANL ..............anlannouncing ........................................................................................... ANCG............ancgannular ................................................................................................ ANLR ............anlrannunciator ........................................................................................... ANN..............annanode .................................................................................................. AD ................ad



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anode [electron device]............................................................................ A .................. Aanodize................................................................................................ ANDZ............ andzanswer................................................................................................. ANS .............. ansantenna................................................................................................ ANT .............. antantenna scan ......................................................................................... SCAN ............ SCANanti (comb form).................................................................................... A .................. aanti meridiem (before noon) ..................................................................... AM ............... amanti tracking control................................................................................ ATRC ............ ATRCantiair output......................................................................................... AAO.............. aaoantiaircraft............................................................................................ AA ................ AAantiaircraft artillery................................................................................. AAA.............. AAAantiaircraft common................................................................................ AAC.............. AACantiaircraft fire control ............................................................................ AAFC ............ AAFCantiaircraft self-destroying........................................................................ AASD............ AASDantifriction bearing ................................................................................. AFB .............. AFBantifriction metal.................................................................................... AFM.............. AFMantihunt ............................................................................................... AH ................ ahantiicing............................................................................................... AI ................. aiantijamming.......................................................................................... AJ ................. ajantilogarithm ........................................................................................ ANTILOG ...... antilogantimissile missile .................................................................................. AMM............. AMMantimotor torpedo boat ............................................................................ AMTB ........... AMTBantimotorboat........................................................................................ AMB ............. ambantipersonnel ........................................................................................ APERS........... APERSantirepeat relay...................................................................................... ARR .............. ARRantiseptic ............................................................................................. ANTSPT ........ antsptantisubmarine........................................................................................ AS ................ ASantisubmarine warfare ............................................................................. ASW ............. ASWantitank ............................................................................................... AT ................ ATantitank nonmetallic ............................................................................... ATNM ........... ATNMantitorpedo ........................................................................................... ATORP .......... atorpantitoxin .............................................................................................. ANTOX ......... antoxantitransmit-receive ................................................................................ ATR .............. ATRantitransmit-receive tube.......................................................................... ATRT ............ ATRTantiunderwater warfare ............................................................................ AUW............. AUWapartment ............................................................................................. APT............... aptaperture ............................................................................................... APERT .......... apertapothecary............................................................................................ APOTH.......... apothapparatus ............................................................................................. APPAR .......... apparapparent............................................................................................... APRNT .......... aprntappearance ........................................................................................... APP............... appappendix .............................................................................................. APPX ............ appxapplication ........................................................................................... APPL............. applapplication list....................................................................................... AL ................ ALapplied ................................................................................................ APLD ............ apldapplique............................................................................................... APLQ ............ aplqapproach .............................................................................................. APRCH.......... aprchapproval............................................................................................... APPVL .......... appvlapprove ............................................................................................... APPV ............ appvapproved.............................................................................................. APVD............ apvdapproximate.......................................................................................... APPROX........ approxApril ................................................................................................... APR .............. Apraqueous ............................................................................................... AQ ................ aq



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arbitrary ............................................................................................... ARB ..............arbarc weld ............................................................................................... ARCW ...........arcwarccosecant ........................................................................................... ARCCSE ........arccsearccosine .............................................................................................. ARCCOS ........arccosarccotangent.......................................................................................... ARCCOT........arccotarchitectural projected window .................................................................. APW..............APWarchitecture ........................................................................................... ARCH ............archarchive................................................................................................. ARCH ............archarcing .................................................................................................. ARNG............arngarcsecant .............................................................................................. ARCSEC ........arcsecarcsine ................................................................................................. ARCSIN .........arcsinarctangent............................................................................................. ARCTAN........arctanarea drain ............................................................................................. AD ................ADarea moving target indicator...................................................................... AMTI.............AMTIarea weight average resolution................................................................... AWAR ...........awararea weighted average T-number................................................................ AWAT ...........awatargument programming............................................................................ AP.................AParithmetic ............................................................................................. ARITH ...........aritharithmetic and logic unit........................................................................... ALU ..............aluarithmetic average .................................................................................. AA ................AAarithmetic unit ....................................................................................... ARITHU.........arithuarmament ............................................................................................. ARMT............armtarmament and electronics ......................................................................... AE.................aearmature............................................................................................... ARM..............armarmature accelerator................................................................................ AA ................AAarmature shunt ....................................................................................... ARMSHT........armshtarming ................................................................................................. ARM..............armArming and Fusing System....................................................................... AFS ...............AFSarming wire .......................................................................................... AW................AWarmor grating ........................................................................................ AG ................AGarmor plate ........................................................................................... ARMPL..........armplarmor-piercing....................................................................................... AP.................AParmor-piercing-capped............................................................................. APC...............APCarmor-piercing-capped incendiary .............................................................. APCI..............APCIarmor-piercing-capped incendiary with tracer................................................ APCIT............APCITarmor-piercing-incendiary ........................................................................ API................APIarmor-piercing-incendiary with tracer ......................................................... APIT..............APITarmor-piercing-with tracer ........................................................................ APT...............APTarmored ............................................................................................... ARMD ...........armdarmored cable........................................................................................ ARMCA .........armcaarmored infantry vehicle .......................................................................... AIV ...............AIVarmored personnel carrier ......................................................................... APC...............APCarmored utility vehicle............................................................................. AUV..............AUVArmy-Navy........................................................................................... AN ................ANArmy-Navy British ................................................................................. ANB ..............ANBArmy-Navy Commercial.......................................................................... ANC ..............ANCArmy-Navy Design................................................................................. AND..............ANDArmy-Navy-Air Force ............................................................................. ANAF ............ANAFaromatic............................................................................................... AROM ...........aromarrange ................................................................................................ ARR ..............arrarray processing instruction set .................................................................. APIS ..............APISarrester ................................................................................................ ARSR ............arsrarresting [gear or hook]............................................................................ ARG ..............arg



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arsine .................................................................................................. ARS .............. arsarticle.................................................................................................. ART .............. artarticulated ............................................................................................ ARTCLD........ artcldartificial ............................................................................................... ARTF ............ artfartificial neutron .................................................................................... ARTRON ....... artronartillery................................................................................................ ARTY............ artyas drawn .............................................................................................. AD ................ ADas required............................................................................................ AR ................ ARas soon as possible ................................................................................. ASAP ............ ASAPasbestos ............................................................................................... ASB .............. asbasbestos cement ..................................................................................... AC ................ ACasbestos millboard.................................................................................. AMB ............. ambasbestos roof shingles.............................................................................. ARS .............. ARSasbestos-cement board............................................................................. ACB .............. ACBasbestos-covered metal ............................................................................ ACM ............. ACMasphalt................................................................................................. ASPH ............ asphasphalt roof shingles ............................................................................... ASPHRS ........ asphrsasphalt-plank floor ................................................................................. ASPHPF......... asphpfasphalt-tile base ..................................................................................... ATB .............. ATBasphalt-tile floor .................................................................................... ATF............... ATFaspirator............................................................................................... ASPRTR ........ asprtrassemble .............................................................................................. ASSEM.......... assemassemble [auto manufacturing] .................................................................. ASM.............. asmassembly.............................................................................................. ASSY ............ assyassembly and repair ................................................................................ AR ................ ARassembly jig.......................................................................................... AJ ................. AJassign.................................................................................................. ASGN............ asgnassignment ........................................................................................... ASGMT ......... asgmtassistance ............................................................................................. ASSTN .......... asstnassistant ............................................................................................... ASST............. asstAssisted Takeoff System.......................................................................... ATOS ............ ATOSassociate .............................................................................................. ASSOC .......... assocassociation ........................................................................................... ASSN ............ assnassort .................................................................................................. ASRT ............ asrtastern .................................................................................................. ASTN ............ astnastigmatism .......................................................................................... ASTIG ........... astigastragal................................................................................................ A .................. aastronomical time switch ......................................................................... ATS............... ATSastronomical unit ................................................................................... AU ................ AUastrophysics .......................................................................................... ASTROPHYS.. astrophysasymmetric........................................................................................... ASYM ........... asymasymptote............................................................................................. ASYMP.......... asympat a later date......................................................................................... ALD .............. ALDathwartship........................................................................................... ATH .............. athatmosphere ........................................................................................... ATM ............. atmatomic (comb form)................................................................................ AT ................ atatomic explosion.................................................................................... ATXPL .......... atxplatomic hydrogen weld ............................................................................. ATW ............. atwatomic weight ....................................................................................... ATWT ........... atwtatomizing ............................................................................................. ATMG ........... atmgattach .................................................................................................. ATCH............ atchattachment............................................................................................ ATCH............ atchattack .................................................................................................. ATCK............ atck



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attention............................................................................................... ATTN ............attnattenuation............................................................................................ ATTEN ..........attenattenuator ............................................................................................. ATTEN ..........attenattitude ................................................................................................ ATTD ............attdattorney................................................................................................ ATTY ............attyaudible................................................................................................. AUD..............audaudio ................................................................................................... AUD..............audaudio frequency ..................................................................................... AF.................AFauditor ................................................................................................. AUDTR..........audtraugment ............................................................................................... AGMT ...........agmtAugust................................................................................................. AUG..............Augauthorize .............................................................................................. AUTH ............authautomatic ............................................................................................. AUTO ............autoautomatic bandwidth control ..................................................................... ABWC ...........ABWCautomatic bass compensation .................................................................... ABSC ............ABSCautomatic bias compensation..................................................................... ABCP ............ABCPautomatic brightness control ..................................................................... ABC ..............ABCautomatic check valve ............................................................................. AUTOCV........autocvautomatic checkout equipment................................................................... ACE ..............ACEautomatic circuit exchange ....................................................................... ACKTX..........ACKTXautomatic clutter eliminator ...................................................................... ACLE.............ACLEautomatic data processing......................................................................... ADP ..............ADPautomatic digital network ......................................................................... AUTODIN ......AUTODINautomatic direction finder......................................................................... ADF ..............ADFautomatic door seal ................................................................................. ADS ..............ADSautomatic flight control equipment ............................................................. AFCE.............AFCEAutomatic Flight Control System ............................................................... AFCS.............AFCSautomatic frequency control...................................................................... AFC...............AFCautomatic gain control ............................................................................. AGC ..............AGCautomatic ground-controlled approach......................................................... AGCA............AGCAautomatic ground-controlled landing ........................................................... AGCL ............AGCLAutomatic Instrument Landing Approach System .......................................... AILAS ...........AILASAutomatic Instrument Landing System ........................................................ AILS..............AILSautomatic lean ....................................................................................... AUTOLEAN ...autoleanautomatic level control ............................................................................ ALC ..............ALCautomatic message accounting................................................................... AMA .............AMAautomatic meteorological observing station .................................................. AMOS............AMOSautomatic mixture control......................................................................... AMC..............AMCautomatic monitoring .............................................................................. AUM .............AUMautomatic moving-target indicator .............................................................. AMTI.............AMTIautomatic noise limiter ............................................................................ ANL ..............ANLautomatic number identification................................................................. ANI ...............ANIautomatic output control .......................................................................... AOC ..............AOCautomatic overload ................................................................................. AUTOOVLD ...AUTOOVLDautomatic overload circuit ........................................................................ AOVC............AOVCautomatic phase control ........................................................................... APC...............APCautomatic phase lock ............................................................................... APL...............APLautomatic pistol ..................................................................................... AUTOP ..........AUTOPautomatic reclosing................................................................................. AUTORECL....AUTORECLautomatic rich........................................................................................ AUTORICH ....AUTORICHautomatic sensitivity control ..................................................................... ASC...............ASCautomatic starter..................................................................................... AUTOSTRT ....AUTOSTRTautomatic starting ................................................................................... AUTOSTRTG..autostrtg



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automatic stop and check valve ................................................................. AUTOSCV ..... AUTOSCVautomatic terrain recognition and navigation................................................. ATRAN.......... ATRANautomatic test equipment ......................................................................... ATE .............. ATEautomatic transformer ............................................................................. AXFMR ......... AXFMRautomatic voice network .......................................................................... AUTOVON..... AUTOVONautomatic volume control......................................................................... AVC.............. AVCautomatic volume expansion..................................................................... AVE .............. AVEautomatic zero set .................................................................................. AZS............... AZSautomation ........................................................................................... AUTOMN....... automnautomobile ........................................................................................... AUTO............ autoautomotive ........................................................................................... AUTOM......... automautotransformer ..................................................................................... AUTOXFMR... AUTOXFMRauxiliary .............................................................................................. AUX.............. auxauxiliary power unit................................................................................ APU .............. APUauxiliary register .................................................................................... AUXR............ AUXRauxiliary switch ..................................................................................... ASW ............. ASWauxiliary switch [breaker] normally closed ................................................... ASC .............. ASCauxiliary switch [breaker] normally open ..................................................... ASO .............. ASOavailability ........................................................................................... AVLBL.......... avlblavailable .............................................................................................. AVAIL........... availavenue................................................................................................. AVE .............. aveaverage................................................................................................ AVG.............. avgaverage daily traffic ................................................................................ ADT .............. ADTaverage diameter.................................................................................... AVGDIA........ avgdiaaverage efficiency index .......................................................................... AEI ............... AEIaverage outgoing quality.......................................................................... AOQ.............. AOQaverage outgoing quality limit ................................................................... AOQL............ AOQLaverage picture level ............................................................................... AVPL ............ AVPLaverage sample number ........................................................................... ASN .............. ASNaverage total inspection ........................................................................... ATI ............... ATIaviation ............................................................................................... AVN.............. avnaviation electronics................................................................................. AVIONICS ..... AVIONICSaviation gas turbine ................................................................................ AGT .............. AGTavoirdupois........................................................................................... AVDP............ avdpawning ................................................................................................ AWN............. awnaxial flow............................................................................................. AXFL ............ AXFLaxial pitch ............................................................................................ AXP .............. AXPaxial pressure angle ................................................................................ APA .............. APAazimuth ............................................................................................... AZ ................ azazimuth and elevation ............................................................................. AZEL ............ AZELazimuth and range .................................................................................. AZRNG.......... AZRNG

Bbabbitt ................................................................................................. BAB .............. babback end .............................................................................................. BE ................ BEback focal distance ................................................................................. BFD .............. BFDback focal length.................................................................................... BFL............... BFLback gear ............................................................................................. BG ................ BGback of board ........................................................................................ BB ................ BBback pressure ........................................................................................ BP................. BPback shelf............................................................................................. BKSLF........... bkslfback to back.......................................................................................... BB ................ bbback view............................................................................................. BV ................ bv



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back-connected...................................................................................... BC.................BCback-feed ............................................................................................. BF .................bfback-pressure control .............................................................................. BPC...............BPCbackface............................................................................................... BF .................bfbackground........................................................................................... BKGD............bkgdbacklash............................................................................................... BL.................blbacklash allowance ................................................................................. BA ................BAbackshell .............................................................................................. BKSHL ..........bkshlbackward-wave magnetron ....................................................................... BWM.............BWMbackward-wave oscillator ......................................................................... BWO .............BWObackward-wave power amplifier ................................................................ BWPA............BWPAbackwater valve ..................................................................................... BWV .............BWVbacteriological ....................................................................................... BACT ............bactbaffle................................................................................................... BAF...............bafbaggage ............................................................................................... BAG ..............bagbail out ................................................................................................ BO ................BObakery ................................................................................................. BAK ..............bakbalance ................................................................................................ BAL ..............balbalanced line driver................................................................................. BLD ..............BLDbalanced voltage .................................................................................... BALV ............balvbalancing coil ........................................................................................ BALCL ..........balclbalancing rheostat................................................................................... BALRHEO......balrheobalancing set ......................................................................................... BALS.............balsball bearing........................................................................................... BBRG ............bbrgball stop ............................................................................................... BSP ...............bspballast.................................................................................................. BLST .............blstballistic ................................................................................................ BAL ..............balBallistic Missile Early Warning System ....................................................... BMEWS .........BMEWSballoon ................................................................................................ B...................bband display.......................................................................................... BNDDIS .........BNDDISband elimination .................................................................................... BDELIM.........BDELIMband filter cutoff .................................................................................... BFCO ............bfcobandpass .............................................................................................. BP .................bpbandstop filter ....................................................................................... BSFL .............bsflbandwidth ............................................................................................ BW................bwbarbette................................................................................................ BARB ............barbbarge, cargo .......................................................................................... BC.................BCbarge, knockdown .................................................................................. BK ................BKbarge, training ....................................................................................... BT.................BTbarium crown ........................................................................................ BC.................BCbarometer ............................................................................................. BARO ............barobarracks ............................................................................................... BKS...............bksbarred.................................................................................................. BRRD ............brrdbarrel tile roof ....................................................................................... BTR...............BTRbarrier ................................................................................................. BARR ............barrbarrier coat ........................................................................................... BC.................BCBarrier Ready Light System...................................................................... BRLS.............BRLSBarrier Up Indicator System...................................................................... BUIS..............BUISbarrier, greaseproof................................................................................. BGP...............BGPbarrier, moisture-vaporproof ..................................................................... BMVP............BMVPbarrier, waterproof.................................................................................. BWP..............BWPbarring................................................................................................. BRRG ............brrgbaryta light fling .................................................................................... BLF ...............BLF



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base and increment ................................................................................. B&I ............... B&Ibase band ............................................................................................. BB ................ BBbase detonating...................................................................................... BD ................ BDbase detonating fuze ............................................................................... BDF .............. BDFbase detonating, self-destroying................................................................. BDSD ............ BDSDbase diameter ........................................................................................ BDIA............. bdiabase ejection ......................................................................................... BE ................ BEbase fuze.............................................................................................. BF................. BFbase helix angle ..................................................................................... BHA.............. BHAbase ignition ......................................................................................... BI ................. BIbase line .............................................................................................. BL ................ BLbase percussion ..................................................................................... BP................. BPbase pitch............................................................................................. BP................. BPbase plate ............................................................................................. BP................. BPbase [electron device].............................................................................. B .................. Bbasement.............................................................................................. BSMT............ bsmtbasic ................................................................................................... BSC............... bscbasic contour line ................................................................................... BCL .............. BCLbasic impulse insulation level.................................................................... BIL ............... bilbasic network........................................................................................ BASNET ........ basnetbasket.................................................................................................. BSKT ............ bsktbatch mixer .......................................................................................... BMXR ........... bmxrbathythermograph .................................................................................. BT ................ btbattalion............................................................................................... BN ................ bnbatten .................................................................................................. BATT ............ battbatter .................................................................................................. BAT .............. batbattery................................................................................................. BTRY ............ btrybattery charger ...................................................................................... BATCHG ....... batchgbattery [electrical] .................................................................................. BAT .............. batbattle................................................................................................... BAT .............. batbattle dressing ....................................................................................... BD ................ BDbayonet................................................................................................ BAY.............. baybayonet candelabra................................................................................. BAYC............ baycbayonet candelabra................................................................................. BAYCAND..... baycbayonet candelabra double contact ............................................................. BAYCANDDC baycanddcbayonet candelabra single contact .............................................................. BAYCANDSC. baycandscbayonet skirted ...................................................................................... BAYSK.......... bayskbeacon................................................................................................. BCN .............. bcnbeams and stringers ................................................................................ BS................. bsbeamsteering......................................................................................... BMSTRG ....... bmstrgbeamwidth ........................................................................................... BMW............. bmwbearing ................................................................................................ BRG .............. brgbearing deviation indicator ....................................................................... BDI ............... BDIbearing procurement specification.............................................................. BPS............... BPSbeat frequency....................................................................................... BF................. BFbeat-frequency oscillator.......................................................................... BFO .............. BFObecket ................................................................................................. BCKT ............ bcktbedding ............................................................................................... BDNG............ bdngbedpan ................................................................................................ BDPN ............ bdpnbedroom .............................................................................................. BR ................ brbefore.................................................................................................. BFR............... bfrbeginner's all-purpose symbolic instruction code [computers] ........................... BASIC ........... BASICbell alarm switch.................................................................................... BASW ........... basw



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bell and bell .......................................................................................... BB.................BBbell and flange ....................................................................................... BF .................BFbell and spigot ....................................................................................... BS .................BSbell cord............................................................................................... BC.................BCbell crank ............................................................................................. BELCRK ........belcrkbell end................................................................................................ BE.................BEbelling ................................................................................................. BLNG ............blngbellmouth ............................................................................................. BLMTH..........blmthbellows ................................................................................................ BLWS ............blwsbelow .................................................................................................. BLW..............blwbelt work line ........................................................................................ BWL..............BWLbench .................................................................................................. BNCH ............bnchbench mark ........................................................................................... BM................BMbenchboard ........................................................................................... BNCHBD .......bnchbdbend down............................................................................................ BDN ..............bdnbend line .............................................................................................. BL.................BLbend radius ........................................................................................... BR.................BRbend up................................................................................................ BUP...............bupbending................................................................................................ BNG ..............bngbent..................................................................................................... BT.................btberth ................................................................................................... BTH ..............bthberthing ............................................................................................... BERTH ..........berthBessemer.............................................................................................. BESS .............Bessbetween ............................................................................................... BETW............betwbetween centers ..................................................................................... BC.................BCbetween perpendiculars............................................................................ BP .................BPbevel ................................................................................................... BEV ..............bevbeveled wood siding ............................................................................... BWS..............BWSbeverage .............................................................................................. BVGE ............bvgebi-directional......................................................................................... BIDIR ............bidirbiconditional ......................................................................................... BICOND.........bicondbiconvex .............................................................................................. BCVX ............bcvxbicycle................................................................................................. BCL...............bclbill of exchange ..................................................................................... BE.................BEbill of lading ......................................................................................... BL.................BLbill of material ....................................................................................... BM................BMbill of sale ............................................................................................ BS .................BSbillet ................................................................................................... BL.................blbillet steel............................................................................................. BLSTL ...........blstlbimetallic ............................................................................................. BMTLC..........bmtlcbinary.................................................................................................. BIN ...............binbinary coded decimal .............................................................................. BCD ..............BCDbinary coded information ......................................................................... BCI................BCIbinary counter ....................................................................................... BC.................BCbinary decoder....................................................................................... BD ................BDbinary digit ........................................................................................... BIT................BITbinary divide ......................................................................................... BDV ..............BDVbinary subtract ....................................................................................... BS .................BSbinder.................................................................................................. BDR ..............bdrbinding ................................................................................................ BDG ..............bdgbinding head ......................................................................................... BDGH............BDGHbinnacle ............................................................................................... BNCL ............bnclbinocular .............................................................................................. BNCLR ..........bnclr



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binominal expansion............................................................................... BINOMEXP.... BINOMEXPbioastronautic orbiting space station ........................................................... BOSS............. BOSSbiochemical oxygen demand..................................................................... BOD.............. BODbiological ............................................................................................. BIOL ............. biolbiological defense .................................................................................. BIODEF ......... BIODEFbiological electronics .............................................................................. BIONICS........ BIONICSbiological warfare .................................................................................. BW ............... BWbiology ................................................................................................ BIOL ............. biolbiology (comb form)............................................................................... BIO ............... biobiparting doors ...................................................................................... BIPD ............. BIPDbipost .................................................................................................. BPT............... bptBirmingham Wire Gage........................................................................... BWG ............. BWGbistaple................................................................................................ BSTL............. bstlbits per inch.......................................................................................... BPI................ BPIbits per second ...................................................................................... BPS............... BPSbituminous ........................................................................................... BITUM .......... bitumblack................................................................................................... BK ................ bkblack................................................................................................... BLK .............. blkblack and white ..................................................................................... BW ............... bwblack and white prints ............................................................................. BW ............... bwblack enamel slate .................................................................................. BES............... BESblack iron............................................................................................. BI ................. BIblack oil finish slate................................................................................ BOFS............. BOFSblack powder ........................................................................................ BP................. BPblack scale............................................................................................ BS................. BSblack varnish cambric [insul] .................................................................... BVC .............. BVCblackboard ........................................................................................... BKD.............. bkdblacken................................................................................................ BLKN............ blknblackening............................................................................................ BLKNG.......... blkngblackout............................................................................................... BO ................ boblackout door ........................................................................................ BOD.............. BODblackout window.................................................................................... BOW ............. BOWblacksmith............................................................................................ BSMITH ........ bsmithblade................................................................................................... BL ................ blblank................................................................................................... BLK .............. blkblanket ................................................................................................ BLKT ............ blktblanking............................................................................................... BLKG............ blkgblanking die.......................................................................................... BLKGD.......... blkgdblasting powder ..................................................................................... BLSTGPWD ... blstgpwdbleed................................................................................................... BL ................ blbleeder ................................................................................................ BLDR ............ bldrblend................................................................................................... BLN .............. blnblinder................................................................................................. BLD .............. bldblock................................................................................................... BLK .............. blkblocking............................................................................................... BLKG............ blkgblocking oscillator.................................................................................. BO ................ BOblowdown ............................................................................................ BLWDN......... blwdnblower................................................................................................. BLO .............. bloblowoff................................................................................................ BO ................ boblowout ............................................................................................... BLWT............ blwtblowout coil.......................................................................................... BOC .............. bocblowtorch............................................................................................. BLWT............ blwtblue .................................................................................................... BL ................ bl



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blue..................................................................................................... BLU ..............blublue indicating light ................................................................................ BIL................BILblue stern light....................................................................................... BSTLT ...........bstltblue tool steel ........................................................................................ BTS ...............BTSblueprint .............................................................................................. BP .................bpboard................................................................................................... BD ................bdboard foot [measure] ............................................................................... FBM ..............FBMboatswain ............................................................................................. BOSN ............bosnbobbin ................................................................................................. BOB ..............bobbody-bound bolts ................................................................................... BBB ..............BBBbody-on-chassis ..................................................................................... BOC ..............BOCboiler................................................................................................... BLR...............blrboiler feed ............................................................................................ BF .................BFboiler feed compound tank ....................................................................... BFCT.............BFCTboiler feed pump .................................................................................... BFP ...............BFPboiler feedwater ..................................................................................... BFW..............BFWboiler house .......................................................................................... BH ................BHboiler pressure ....................................................................................... BOPRESS .......bopressboiler water........................................................................................... BOWR ...........BOWRboilermaker........................................................................................... BMKR ...........bmkrboiling ................................................................................................. BOG ..............bogboiling point.......................................................................................... BP .................BPboldface type......................................................................................... BF .................BFbolster ................................................................................................. BOLS.............bolsbolt circle ............................................................................................. BC.................BCbolted bonnet ........................................................................................ BLTBT...........bltbtbolted on base ....................................................................................... BOBS ............bobsbolted plate ........................................................................................... BP .................BPbomb nose fuze...................................................................................... BNF...............BNFbomb service......................................................................................... BS .................BSbomb tail fuze ....................................................................................... BTF ...............BTFbomb testing device ................................................................................ BTD ..............BTDbombardier ........................................................................................... BMBDR .........bmbdrbombardment [projectile] ......................................................................... BBT...............bbtbomber [aircraft] .................................................................................... B...................bbombsight ............................................................................................ BOMST..........bomstbonded................................................................................................. BND ..............bndbonderize ............................................................................................. BNDZ ............bndzbonding ............................................................................................... BNDG............bndgboneless ............................................................................................... BNLS.............bnlsbonnet ................................................................................................. BNT ..............bntbook-form drawing ................................................................................. BFD...............BFDbookcase .............................................................................................. BC.................bcbookrack .............................................................................................. BR.................brboost rocket .......................................................................................... BSTRKT.........bstrktbooster................................................................................................. BSTR.............bstrbootstrap .............................................................................................. BTST .............btstborescope ............................................................................................. BS .................bsboresight .............................................................................................. BRSIT............brsitborosilicate crown .................................................................................. BSC...............BSCborrowed light ....................................................................................... BLT...............BLTboth faces ............................................................................................. BF .................BFboth sides ............................................................................................. BS .................BS



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both ways............................................................................................. BW ............... BWbottle .................................................................................................. BTL............... btlbottom................................................................................................. BOT .............. botbottom chord......................................................................................... BC ................ BCbottom face .......................................................................................... BF................. BFbottom layer ......................................................................................... BL ................ BLbottom lead left ..................................................................................... BTLL............. BTLLbottom lead right.................................................................................... BTLR ............ BTLRbottoming............................................................................................. BOTMG ......... botmgboundary.............................................................................................. BDY.............. bdybow buoyancy ....................................................................................... BBYCY.......... bbycybow designation light .............................................................................. BDLT ............ bdltbow diving ........................................................................................... BDVG............ bdvgbow door.............................................................................................. BDO.............. bdobow light.............................................................................................. BWLT............ bwltbow plane ............................................................................................ BPLA ............ BPLAbowstring ............................................................................................. BWSTRN ....... bwstrnbox fin................................................................................................. BXF .............. bxfboxcar detector ...................................................................................... BXDT............ BXDTbracket ................................................................................................ BRKT ............ brktbraid ................................................................................................... BRD .............. brdbraided ................................................................................................ BRD .............. brdbraided wire.......................................................................................... BW ............... BWbrake................................................................................................... BK ................ bkbrake band............................................................................................ BRKBD.......... brkbdbrake mean effective pressure ................................................................... BMEP............ BMEPbranch ................................................................................................. BR ................ brbrass ................................................................................................... BRS............... brsbrass divider strip................................................................................... BDS .............. BDSbraze................................................................................................... BRZ .............. brzbrazier................................................................................................. BRAZ ............ brazbrazier head .......................................................................................... BRAZH.......... brazhbrazing ................................................................................................ BRZG ............ brzgbread wrapping and sealing machine........................................................... BWSM........... BWSMbreadth or beam of ship ........................................................................... B .................. bbreak................................................................................................... BRK .............. brkbreak before make.................................................................................. BBM ............. BBMbreak jaw ............................................................................................. BJ ................. BJbreakdown ........................................................................................... BKDN............ bkdnbreakdown diode.................................................................................... BKDNDIO...... BKDNDIObreaker ................................................................................................ BRKR............ brkrbreaker end........................................................................................... BE ................ BEbreaking............................................................................................... BRKG............ brkgbreathe ................................................................................................ BRTH ............ brthbreather ............................................................................................... BRTHR.......... brthrbreathing apparatus ................................................................................ BA ................ BAbreech loading....................................................................................... BL ................ BLbreech mechanism.................................................................................. BM................ BMbrick ................................................................................................... BRK .............. brkbridge.................................................................................................. BRDG............ brdgbridge cutoff ......................................................................................... BCO .............. BCObright .................................................................................................. BRT .............. brtbrightness............................................................................................. BRT .............. brt



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brilliance .............................................................................................. BRIL..............brilBrinell hardness ..................................................................................... BH ................BHBrinell hardness number .......................................................................... BHN ..............BHNBritish Standard ..................................................................................... BSI ................BSIBritish Standard Wire Gage ...................................................................... SWG..............SWGBritish thermal unit ................................................................................. BTU ..............BTUbroach ................................................................................................. BRCH ............brchbroadband ............................................................................................ BRDB ............brdbbroadcast.............................................................................................. BC.................bcbronze ................................................................................................. BRZ...............brzbroom closet ......................................................................................... BCL...............bclbrown.................................................................................................. BR.................brbrown.................................................................................................. BRN ..............brnBrown & Sharpe Wire Gage ..................................................................... BS .................BSbrowning aircraft machine gun .................................................................. BAMG ...........BAMGbrowning automatic rifle .......................................................................... BAR ..............BARbrowning machine gun ............................................................................ BMG..............BMGbrush ................................................................................................... BR.................brbrush holder .......................................................................................... BRH ..............brhbubble memory...................................................................................... BUBMEM.......BUBMEMbucket ................................................................................................. BKT ..............bktbuckram............................................................................................... BUCK ............buckbuffer .................................................................................................. BFR...............bfrbuffer amplifier...................................................................................... BA ................BAbuffer register........................................................................................ BR.................BRbuffing................................................................................................. BFG...............bfgbuilding ............................................................................................... BLDG ............bldgbuilding line.......................................................................................... BL.................BLbuilt in test............................................................................................ BIT................BITbuilt-in................................................................................................. BLTIN ...........bltinbulk [substrate] [electron device] ............................................................... BU ................BUbulkhead .............................................................................................. BHD ..............bhdbulldozer .............................................................................................. BDZR ............bdzrbulletin ................................................................................................ BULL.............bullbulletin board ........................................................................................ BB.................BBbulletproof............................................................................................ BPRF .............bprfbullnose ............................................................................................... BN ................bnbunching .............................................................................................. BCHG ............bchgbunching black ...................................................................................... BB.................BBbundle ................................................................................................. BDL ..............bdlbuoy messenger ..................................................................................... BMSS ............BMSSbuoyancy.............................................................................................. B...................bbuoyant................................................................................................ BYNT ............byntbureau ................................................................................................. BU ................buburlap.................................................................................................. BRLP.............brlpburner.................................................................................................. BNR ..............bnrburning ................................................................................................ BRNG ............brngburnish ................................................................................................ BNSH ............bnshburster ................................................................................................. BRSTR...........brstrbursting strength .................................................................................... BRSTSTR .......brststrbus selector........................................................................................... BSLR.............bslrbus tie.................................................................................................. BT.................BTbus transfer ........................................................................................... BTR...............BTR



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bush transfer ......................................................................................... BTR .............. BTRbushel ................................................................................................. BU ................ bubushing................................................................................................ BSHG ............ bshgbushing current transformer ...................................................................... BCT .............. BCTbushing potential device .......................................................................... BPD .............. BPDbusiness ............................................................................................... BUS .............. busbusiness input-output rerun....................................................................... BIOR............. BIORbut-live................................................................................................ BL ................ blbutane ................................................................................................. BUTN............ butnbutcher ................................................................................................ BTCR ............ btcrbutt line ............................................................................................... BL ................ BLbutt weld.............................................................................................. BTWLD ......... BTWLDbutterfly............................................................................................... BTFL............. BTFLbuttock line .......................................................................................... BL ................ BLbutton.................................................................................................. BTN .............. btnbutton head........................................................................................... BTNHD.......... BTNHDbuzzer ................................................................................................. BUZ .............. buzbypass ................................................................................................. BYP .............. byp

Ccable ................................................................................................... CBL .............. cblcable fuzing [firing] ................................................................................ CF................. Cfcable television...................................................................................... CATV............ catvcable termination equipment ..................................................................... CTE............... CTEcalibration ............................................................................................ CAL .............. calcam timing contact ................................................................................. CTC .............. CTCcamera control unit................................................................................. CCU .............. CCUcanceled transmission ............................................................................. CANTRAN ..... CANTRANcandlepower ......................................................................................... CP................. cpcanister................................................................................................ CSTR............. cstrcanographer .......................................................................................... CRTOG.......... crtogcapable ................................................................................................ CPBL............. cpblcapacitance........................................................................................... CAP .............. capcapacitor diode ...................................................................................... CD ................ CDcapacitor diode gate ................................................................................ CDG.............. CDGcarbon film resistor................................................................................. CFR............... CFRcarbon steel .......................................................................................... CS................. CScard cage.............................................................................................. CRCG............ crcgcard per minute...................................................................................... CPM.............. CPMcard random access memory ..................................................................... CRAM ........... CRAMcard-to-tape tape .................................................................................... CTT............... CTTcarrier elimination filter ........................................................................... CEF............... CEFcarrier frequency.................................................................................... CF................. CFcarrier frequency shift ............................................................................. CFS............... CFScarrier operated relay .............................................................................. COR .............. CORcarrier supply ........................................................................................ CS................. CScarrier to noise ...................................................................................... CN ................ CNcarrier wave.......................................................................................... CW ............... CWcarrying ............................................................................................... CRYG............ crygcarton.................................................................................................. CTN .............. ctncartridge .............................................................................................. CRTG ............ crtgcartridge storage case .............................................................................. CSC............... CSCcasing.................................................................................................. CSG .............. csg



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cast steel .............................................................................................. CS .................CScast stone ............................................................................................. CS .................CScastellate .............................................................................................. CSTL .............cstlcasting ................................................................................................. CSTG.............cstgcatalyst ................................................................................................ CTLST ...........ctlstcategory ............................................................................................... CAT ..............catcathode [electron device].......................................................................... K...................Kcathode-ray oscilloscope .......................................................................... CRO ..............CROcathode-ray tube..................................................................................... CRT...............CRTcatwalk ................................................................................................ CTWALK .......CTWALKcaution................................................................................................. CAUT ............cautceiling and visibility unlimited .................................................................. CAVU............CAVUcelestial................................................................................................ CEL...............celcellulose acetate [insul]............................................................................ L ................... lCelsius................................................................................................. C...................Ccenter .................................................................................................. CTR...............ctrcenter frequency..................................................................................... CTRF.............CTRFcenter frequency modulation ..................................................................... CFM ..............CFMcenter frequency stabilization .................................................................... CFS ...............CFScenter line............................................................................................. CL.................clcenter line average.................................................................................. CLA ..............CLAcenter line vertical keel ............................................................................ CVK ..............CVKcenter section ........................................................................................ CS .................CScenter tap ............................................................................................. CT.................CTcenter to center ...................................................................................... C TO C...........C TO Ccentering .............................................................................................. CTRG ............CTRGcentipoise ............................................................................................. CP .................CPcentral ................................................................................................. CTL...............CTLcentral command decoder......................................................................... CCD ..............CCDcentral logic unit .................................................................................... CLU ..............CLUcentral processing element........................................................................ CPE ...............CPEcentral processing unit ............................................................................. CPU...............CPUcentral timing equipment.......................................................................... CTE...............CTEcentral timing unit .................................................................................. CTU ..............CTUcentralized traffic control ......................................................................... CTC...............CTCceramic tile ........................................................................................... CT.................CTceramic-tile base .................................................................................... CTB...............CTBceramic-tile floor.................................................................................... CTF ...............CTFchamber ............................................................................................... CHAMB .........chambchange ................................................................................................. CHG ..............chgchange in design .................................................................................... CID ...............CIDchange point.......................................................................................... CP .................CPchange request ....................................................................................... CR.................CRchangeable type-plate style ....................................................................... CTPS .............CTPScharge coupled device ............................................................................. CCD ..............CCDcheck value........................................................................................... CV ................CVcheckout and automatic monitoring ............................................................ CAM..............CAMchemical biological munitions ................................................................... CBM..............CBMchemical warfare.................................................................................... CW................CWchloropicrin .......................................................................................... PS .................PSchrome vanadium................................................................................... CRVAN..........crvanchrome-tanned leather ............................................................................. CRTANLTHR..crtanlthrchromium plate...................................................................................... CRPL.............CRPL



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chronometer.......................................................................................... CRNMTR ....... crnmtrcircuit.................................................................................................. CKT .............. CKTcircuit master ........................................................................................ CM................ CMcircuit requirement table .......................................................................... CRT .............. CRTcircuit switching magnetic tape ................................................................. CSMT............ CSMTcircuit switching unit .............................................................................. CSU .............. CSUcircular polarization................................................................................ CP................. CPcircular probable error............................................................................. CPE............... CPEcirculating water pump ............................................................................ CWP.............. CWPcivil .................................................................................................... CVL .............. cvlclarification .......................................................................................... CLAR ............ clarclear air turbulence ................................................................................. CAT .............. CATclear write condition ............................................................................... CWC ............. CWCclock pulsed control................................................................................ CPC............... CPCclockwise ............................................................................................. CW ............... cwclose packed ......................................................................................... CP................. CPclose support......................................................................................... CS................. CSclose to shoulder .................................................................................... CTS............... CTSclose type control circuit contact................................................................ CTCCC .......... CTCCCclose-in support ..................................................................................... CIS................ CISclosed loop ........................................................................................... CL ................ CLclosed loop approach control..................................................................... CLAC ............ CLACcluster bomb unit ................................................................................... CBU .............. CBUcoarse.................................................................................................. CRS............... crscoated ................................................................................................. CTD .............. ctdcoating ................................................................................................ CTG .............. ctgcode identification number ....................................................................... CIN ............... cincoded automatic gain control .................................................................... CAGC............ CAGCcoded biphase ....................................................................................... COBI ............. COBIcoded pulse anticlutter system................................................................... CPACS .......... CPACScoder sequential pulse ............................................................................. CSP............... CSPcoherent master oscillator......................................................................... COMO ........... COMOcoherent phase shift keying ...................................................................... CPSK............. CPSKcoil sketch ............................................................................................ CS................. CScold drawn copper.................................................................................. CDC .............. CDCcold side .............................................................................................. CSD .............. CSDcold water ............................................................................................ CW ............... CWcold-rolled steel ..................................................................................... CRS............... CRScolor code ............................................................................................ CC ................ CCcombat ready ........................................................................................ CR ................ CRcombat vehicle ...................................................................................... CV ................ CVcombined ............................................................................................. CMBD ........... cmbdcombined distribution frame ..................................................................... CDF .............. CDFcombining ............................................................................................ COMB ........... combcommand and service module ................................................................... CSM.............. CSMcommand control number......................................................................... CCN .............. CCNcommand data acquisition ........................................................................ CDA.............. CDAcommand destruct receiver ....................................................................... CDR .............. CDRcommand destruct transmitter ................................................................... CDT .............. CDTcommand module................................................................................... CM................ CMcommand pulse output ............................................................................ CPO .............. CPOcommand radio link................................................................................ CORAL.......... coralcommercial and government entity (code).................................................... CAGE............ CAGE



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commission........................................................................................... COMSN .........comsncommon digitizer ................................................................................... CD ................CDcommon steel [projectile] ......................................................................... CS .................CScommunication line terminator .................................................................. COLT.............coltcommunications access device................................................................... CAD ..............CADcommunications and data ......................................................................... C&D..............c&dcommunications and navigation ................................................................. CN ................cncommunications automatic processing equipment .......................................... CAPE.............CAPEcommunications electronics meteorological .................................................. CEM..............CEMcommunications intelligence ..................................................................... COMINT ........COMINTcommunications jamming......................................................................... COMJAM .......COMJAMcommunications moon relay ..................................................................... CMR..............CMRcommunications need .............................................................................. COMNEED .....comneedcommunications network ......................................................................... COMNET .......COMNETcommunications satellite .......................................................................... COMSAT........comsatcommunications satellite relay................................................................... CSR...............CSRcommunications support element ............................................................... CSE ...............CSEcommunications zone indicator.................................................................. COZI .............COZIcommunity automatic exchange ................................................................. CAX ..............CAXcomparator buffer................................................................................... CB.................CBcompatible single sideband ....................................................................... CSSB .............CSSBcompensated avalanche diode.................................................................... CAD ..............CADcompiler............................................................................................... COMP............compcomplementary semiconductor controlled .................................................... CSCR.............CSCRcomplementary transistor logic .................................................................. CTL...............CTLcomplementary unijunction transistor.......................................................... CUJT .............CUJTcomplete with........................................................................................ CW................CWcomponent board.................................................................................... CB.................CBcomponent board assembly....................................................................... CBA ..............CBAcomponent change control ........................................................................ CCC ..............CCCcomponent metal parts............................................................................. CMP ..............CMPcomponent repair ................................................................................... CR.................CRcompressor ........................................................................................... COMPR..........comprcomputed air release point ........................................................................ CARP ............CARPcomputer access device............................................................................ CAD ..............CADcomputer access device input .................................................................... CADI .............CADIcomputer access device output................................................................... CADO............CADOcomputer aided design ............................................................................. CAD ..............CADcomputer aided manufacturing................................................................... CAM..............CAMcomputer aided test equipment .................................................................. CATE.............CATEcomputer automated support equipment ....................................................... CASE.............CASEcomputer data word ................................................................................ CDW .............CDWcomputer direct to telegraph...................................................................... CODIT ...........coditcomputer indicator.................................................................................. CI..................CIcomputer process control.......................................................................... CPC...............CPCcomputerized tomography ........................................................................ CT.................CTconcentric............................................................................................. CONC ............concconcept formulation ................................................................................ CF .................CFconcession ............................................................................................ CON ..............conconcrete splash block .............................................................................. CSB...............CSBconcurrent ............................................................................................ CNCR ............cncrcondensation trail ................................................................................... CONTRAIL.....contrailcondition .............................................................................................. COND............cond



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conducted susceptibility........................................................................... CS................. csconductor ............................................................................................. COND............ condconference............................................................................................ CONF ............ confconfiguration item.................................................................................. CI ................. ciconfine ................................................................................................ CONF ............ confconical ................................................................................................ CONL............ conlconical scan .......................................................................................... CONSCAN ..... conscanconical scan on receive only ..................................................................... CSORO.......... CSOROconnection............................................................................................ CONN............ connconsecutive........................................................................................... CONSEC........ consecconsole ................................................................................................ CSL............... cslconsolidated cryptologic program .............................................................. CCP............... CCPconstant current transformer ..................................................................... CCT .............. CCTconstant level speech .............................................................................. CLS............... CLSconstant output amplifier ......................................................................... COA.............. COAconstant speed drive................................................................................ CSD .............. CSDcontact ................................................................................................ CONT............ contcontact lost ........................................................................................... CL ................ CLcontact potential difference....................................................................... CPD .............. CPDcontinental horsepower............................................................................ CONTHP........ CONTHPcontinental polar air mass......................................................................... CPAM ........... CPAMcontinental tropical air mass ..................................................................... CTAM ........... CTAMcontinued ............................................................................................. CONT............ contcontinued ............................................................................................. CONTD.......... contdcontinuous current monitoring device ......................................................... CCMD ........... CCMDcontinuous rod....................................................................................... CR ................ CRcontinuous wave .................................................................................... CW ............... CWcontinuous wave acquisition radar.............................................................. CWAR ........... CWARcontinuous wave frequency modulated ........................................................ CWFM........... CWFMcontinuous wave illuminator ..................................................................... CWI .............. CWIcontinuous wave intermediate frequency...................................................... CWIF............. CWIFcontinuously variable .............................................................................. CV ................ CVcontour ................................................................................................ CTR .............. ctrcontract data requirements list ................................................................... CDRL ............ CDRLcontract end item ................................................................................... CEI ............... CEIcontractor furnished aircraft equipment ....................................................... CFAE ............ CFAEcontrast................................................................................................ CTRS............. ctrscontrol point ......................................................................................... CP................. CPcontrol power switch............................................................................... CSW.............. CSWcontrol read-only memory ........................................................................ CROM ........... CROMcontrol shift register................................................................................ CSR............... CSRcontrol stick steering............................................................................... CSS............... CSScontrol switch ....................................................................................... CS................. CScontrol transmitter .................................................................................. CX ................ CXcontrol wheel steering ............................................................................. CWS.............. CWScontrol [computers] ................................................................................ CTRL ............ ctrlcontrollable radar target simulator .............................................................. CRTS............. CRTScontrolled blip scan ................................................................................ CBS............... CBScontrolled carrier modulation .................................................................... CCM ............. CCMcontrolled current feedback transformer....................................................... CCFT............. CCFTcontrolled rectifier.................................................................................. CR ................ CRcontroller ............................................................................................. CONT............ contcontrols and displays............................................................................... CD ................ CD



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convection ............................................................................................ CONVN .........convnconvector ............................................................................................. CONVR..........convrconventional ......................................................................................... CVNTL ..........cvntlconvergence.......................................................................................... CONVG .........convgconversion ............................................................................................ CVRSN ..........cvrsnconvex................................................................................................. CVX ..............cvxcoordinated universal time........................................................................ UTC ..............UTCcopper oxide ......................................................................................... CUO ..............cuocoppersmith .......................................................................................... CSMITH.........CSMITHcore memory ......................................................................................... CM................CMcore memory driver................................................................................. CMD..............CMDcore shift .............................................................................................. CS .................CScore shift driver...................................................................................... CSD...............CSDcore storage element ............................................................................... CSE ...............CSEcore transistor logic................................................................................. CTL...............CTLcorner.................................................................................................. COR ..............corcorrective maintenance ............................................................................ CM................CMcorrelated orientation tracking and ranging ................................................... COTAR ..........COTARcorrelation display analyzing and recording .................................................. CODAR..........CODARcorrelation radar..................................................................................... CORAD..........CORADcorrelation radio link ............................................................................... CORAL ..........CORALcorrosion .............................................................................................. CRSN ............crsncorrosive .............................................................................................. CRSV ............crsvcorrugated wire glass............................................................................... CWG .............CWGcosecant ............................................................................................... CSC...............csccount ................................................................................................... CT.................ctcount per minute .................................................................................... CTM..............ctmcount per second .................................................................................... CTS ...............ctscounter ................................................................................................ CTR...............ctrcounter intelligence................................................................................. CI..................CIcounter voltage ...................................................................................... CV ................CVcounterfire ............................................................................................ CF .................CFcounterinsurgency .................................................................................. COIN .............coincountermeasures and deception.................................................................. CMD..............CMDcountermeasures homing.......................................................................... CMH..............CMHcountershaft .......................................................................................... CTSHFT.........ctshftcountersink ........................................................................................... CSK...............cskcountersink other side.............................................................................. CSKO ............CSKOcountersunk .......................................................................................... CTSK.............ctskcountersunk head ................................................................................... CSKH ............CSKHcounterweight........................................................................................ CTWT............ctwtcounty ................................................................................................. CTY ..............CTYcourse deviation indicator......................................................................... CDI ...............CDIcradle .................................................................................................. CRDL ............crdlcrankshaft............................................................................................. CSHAFT.........cshaftcrash position indicator ............................................................................ CPI ................CPIcrating ................................................................................................. CTG ..............ctgcredit................................................................................................... CR.................crcrimp................................................................................................... CRP...............crpcritical design review .............................................................................. CDR ..............CDRcritical flicker frequency .......................................................................... CFF ...............CFFcross bracing ......................................................................................... XBRA ............xbracross section.......................................................................................... XSECT...........xsect



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cross-connection .................................................................................... XCO.............. xcocross-connection .................................................................................... XCONN ......... xconncross-country ........................................................................................ XCY.............. xcycross-point ........................................................................................... XPT............... xptcrossarm .............................................................................................. XARM ........... xarmcrossbar ............................................................................................... XBAR............ xbarcrossbar tandem..................................................................................... XBT .............. xbtcrosshair .............................................................................................. XHAIR .......... xhaircrosshead ............................................................................................. CRSHD.......... crshdcrossing ............................................................................................... XING............. xingcrossover ............................................................................................. CRSVR .......... crsvrcruising ............................................................................................... CRUIS ........... cruiscryogenics............................................................................................ CRYOG ......... cryogcryptograph .......................................................................................... CTGH............ ctghcryptography......................................................................................... CRYPTO........ cryptocrystal ................................................................................................. XTAL ............ xtalcrystal oscillator .................................................................................... XTLO ............ xtlocrystalline ............................................................................................ CRYST .......... crystcubic................................................................................................... CU ................ cucubic feet per minute............................................................................... CFM.............. cfmcubic feet per second............................................................................... CFS............... cfscubic foot............................................................................................. CUFT ............ cuftcubic inch ............................................................................................ CUIN............. cuincubic meter........................................................................................... CUM ............. cumcubic millimeter..................................................................................... CUMM .......... cummcubic yard ............................................................................................ CUYD............ cuydcubicle ................................................................................................ CUB .............. cubculvert ................................................................................................. CULV............ culvcumulative ........................................................................................... CUM ............. cumcupboard.............................................................................................. CUP .............. cupcurrent................................................................................................. CUR .............. curcurrent source ....................................................................................... IGEN............. igencurrent transformer................................................................................. CT ................ CTcurtain................................................................................................. CURT ............ curtcurve................................................................................................... CRV .............. crvcurve drawing ....................................................................................... CRVDWG ...... crvdwgcushing................................................................................................ CSHG ............ cshgcushion................................................................................................ CUSH ............ cushcustomer .............................................................................................. CUST ............ custcut stone .............................................................................................. CUTS ............ cutscutlery................................................................................................. CTLRY .......... ctlrycutter .................................................................................................. CTR .............. ctrcutting................................................................................................. CTG .............. ctgcyanide................................................................................................ CYN.............. cyncycle ................................................................................................... CY ................ cycycle per second .................................................................................... CS................. cscyclonite .............................................................................................. RDX.............. rdxcyclotron.............................................................................................. CYCLO.......... cyclocylinder ............................................................................................... CYL .............. cylcylinder lock......................................................................................... CYLL ............ cyllcylindrical ............................................................................................ CYL .............. cylcylindrical cartridge................................................................................ CYLCART...... cylcart



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Ddamage control ...................................................................................... DC ................DCdamper ................................................................................................ DMPR............dmprdamping............................................................................................... DPG ..............dpgdampproofing........................................................................................ DP.................dpdashpot [relay]....................................................................................... DP.................dpdata base update time .............................................................................. DBUT ............DBUTdata line translator .................................................................................. DLT...............dltdata link ............................................................................................... DL.................DLdata list ................................................................................................ DL.................DLdata management ................................................................................... DMGT ...........dmgtdata processing machine .......................................................................... DPM..............DPMdata recording........................................................................................ DRCDG..........drcdgdata reduction........................................................................................ DRDCN..........drdcndata scanning and routing ......................................................................... DSR...............DSRdata terminal equipment........................................................................... DTE...............DTEdata transmitting equipment ...................................................................... DXE ..............DXEdated ................................................................................................... DTD ..............DTDdatum .................................................................................................. DAT ..............datdaughterboard ....................................................................................... DTRBD ..........dtrbddaylight................................................................................................ DL.................dldaylight opening .................................................................................... DLO ..............dlodead light ............................................................................................. DL.................dldead load.............................................................................................. DL.................dldead reckoning ...................................................................................... DR ................drdead reckoning analyzer........................................................................... DRA ..............dradead reckoning equipment ........................................................................ DRE ..............DREdead reckoning indicator .......................................................................... DRI ...............DRIdead reckoning tracer .............................................................................. DRT ..............DRTdead reckoning trainer ............................................................................. DRTR ............DRTRdeadweight ........................................................................................... DWT..............dwtdeaerating............................................................................................. DEARTG........deartgdeaerating feed tank ................................................................................ DFT...............DFTdealer .................................................................................................. DLR ..............dldecade scaler......................................................................................... DS.................DSdecalcomania ........................................................................................ DECAL ..........decaldecanning scuttle.................................................................................... DS.................DSdecay time ............................................................................................ DT.................DTdecelerate ............................................................................................. DCLR ............dclrDecember............................................................................................. DEC ..............Decdecibel................................................................................................. DB ................dBdecimal ................................................................................................ DEC ..............decdecision ............................................................................................... DECN ............decndeck drain valve..................................................................................... DDV..............ddvdeck edge ............................................................................................. DKE ..............dkedeck edge light ...................................................................................... DELT.............deltdeck piercing......................................................................................... DP.................dpdeck surface light ................................................................................... DSLT.............dsltdeckhouse ............................................................................................ DKHSE ..........dkhsedeclutch ............................................................................................... DCLU ............dcludecode ................................................................................................. DCD ..............dcddecoder ................................................................................................ DCDR ............dcdrdecompression....................................................................................... DECOMPN .....decompn



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decontamination .................................................................................... DECONTN ..... decontndecrease............................................................................................... DECR ............ decrdecrement ............................................................................................ DECRT .......... decrtdedendum ............................................................................................ DED .............. deddeep tank ............................................................................................. DT ................ DTdeep underwater measuring device ............................................................. DUNC............ DUNCdeep underwater nuclear counter................................................................ DUNC............ DUNCdeep-drawn........................................................................................... DD ................ DDdeep-space instrumentation facility............................................................. DSIF.............. DSIFdefective .............................................................................................. DEF............... defdefense ................................................................................................ DEF............... defdeficiency in allowance ........................................................................... DIA............... DIAdefinite time ......................................................................................... DEFT............. DEFTdefinite-time relay .................................................................................. DTR .............. DTRdefinition ............................................................................................. DEF............... defdeflating .............................................................................................. DFL............... dfldeflect ................................................................................................. DEFL............. defldeflection plate...................................................................................... DP ................ DPdeflector .............................................................................................. DFTR ............ dftrdefogging............................................................................................. DF ................ dfdefrost ................................................................................................. DFR .............. dfrdegasifier ............................................................................................. DGSFR .......... DGSFRdegaussing ........................................................................................... DEGUSG........ DEGUSGdegaussing compass................................................................................ DCMPS.......... DCMPSdegaussing computer............................................................................... DCMPTR ....... DCMPTRdegaussing system.................................................................................. DGS .............. DGSdegrease............................................................................................... DGR.............. dgrdegree ................................................................................................. DEG .............. degdehumidify ........................................................................................... DHMY........... dhmydehydrator............................................................................................ DYHR............ dyhrdeicing ................................................................................................ DI ................. didelay................................................................................................... DLY .............. dlydelay line ............................................................................................. DL ................ dldelayed automatic gain control .................................................................. DAGC............ DAGCdelayed automatic volume control .............................................................. DAVC............ DAVCdelete .................................................................................................. DELE ............ deledelineation ........................................................................................... DEL .............. deldelivery ............................................................................................... DLVY............ dlvydelta amplitude...................................................................................... DA ................ DAdeluxe ................................................................................................. DLX .............. dlxdemagnetize.......................................................................................... DMGZ ........... dmgzdemagnetizer ........................................................................................ DMTZR ......... dmtzrdemand indicator ................................................................................... DI ................. DIdemand meter ....................................................................................... DM ............... DMdemand meter printing ............................................................................ DP ................ DPdemand-totalizing relay ........................................................................... DTR .............. DTRdemineralizer ........................................................................................ DMNRLZR..... dmnrlzrdemodulator.......................................................................................... DEMOD......... demoddemodulator band filter ........................................................................... DBF .............. DBFdemolition............................................................................................ DML ............. dmldenatured ............................................................................................. DNTRD.......... dntrddenote ................................................................................................. DEN .............. dendense flint ............................................................................................ DF ................ DF



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density................................................................................................. DENS.............densdental .................................................................................................. DNTL ............dntldental amalgamator................................................................................. DAMLG .........DAMLGdental suction apparatus ........................................................................... DISCAPRS......DISCAPRSdepartment............................................................................................ DEPT.............deptdeposit................................................................................................. DEP...............depdepot installed ....................................................................................... DEPINST........depinstdepression ............................................................................................ DEPR.............deprdepth ................................................................................................... DP.................dpdepth (of ship) ....................................................................................... D...................Ddepth charge.......................................................................................... DC ................DCdepth deviation indicator .......................................................................... DDI ...............DDIdepth keeping ........................................................................................ DKPG ............DKPGderivative ............................................................................................. DERIV ...........derivdermatine ............................................................................................. DER ..............derderrick ................................................................................................. DRK ..............drkdesalter ................................................................................................ DSLTR...........dsltrdescribe ............................................................................................... DESCR...........descrdescription............................................................................................ DESCP...........descpdescriptor attribute matrix ........................................................................ DAM .............DAMdesensitize ............................................................................................ DSNTZ...........dsntzdesiccant .............................................................................................. DSCC ............dsccdesign.................................................................................................. DSGN ............dsgndesign specification ................................................................................ DSPEC...........DSPECdesignation ........................................................................................... DES...............desdesignator............................................................................................. DES...............desdesigned waterline.................................................................................. DWL..............DWLdesigner ............................................................................................... DES...............desdesk, combination flat-top and typewriter..................................................... FTTW ............FTTWdesk, double-pedestal flat-to...................................................................... DPFT .............DPFTdesk, double-pedestal typewriter ................................................................ DPTW............DPTWdesk, single-pedestal flat-top ..................................................................... SPFT..............SPFTdesk, single-pedestal typewriter ................................................................. SPTW ............SPTWdestination ............................................................................................ DESTN...........destndestroyer antisubmarine transportable array detection ..................................... DASTARD......DASTARdestructive firing .................................................................................... DESTRFIR......destrfirdestructive readout ................................................................................. DRO ..............DROdestructor ............................................................................................. DESTR...........destrdesuperheater ........................................................................................ DSUPHTR ......dsuphtdetached............................................................................................... DTCH ............dtchdetail ................................................................................................... DET...............detdetector................................................................................................ DET...............detdetector back bias................................................................................... DBB ..............DBBdetent .................................................................................................. DTT...............dttdetention .............................................................................................. DETN ............detndeterminant........................................................................................... DET...............detdetermination ........................................................................................ DETN ............detndetonator .............................................................................................. DET...............detdevelop................................................................................................ DVL ..............dvldeveloped length .................................................................................... DEVLG ..........DEVLGdevelopment ......................................................................................... DEV ..............devdeviate................................................................................................. DEV ..............devdeviation .............................................................................................. DEVN ............devn



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deviation equalizer ................................................................................. DEVEQL........ DEVEQLdevice ................................................................................................. DVC.............. dvcdevice under test .................................................................................... DUT .............. DUTdew point ............................................................................................. DP ................ DPdewatering ........................................................................................... DEWTRG....... dewtrgdiagnostic............................................................................................. DIGN............. digndiagonal............................................................................................... DIAG............. diagdiagram ............................................................................................... DIAG............. diagdiagrammatic ........................................................................................ DIAGR .......... diagrdial illumination .................................................................................... DLILMN ........ dlilmndial indicating ....................................................................................... DLINDG ........ dlindgdial lock............................................................................................... DLOCK.......... dlockdiallyl phthalate ..................................................................................... DIALPHTH..... dialphthdiameter............................................................................................... DIA............... diadiameter bolt circle................................................................................. DBC .............. DBCdiametral pitch ...................................................................................... DP ................ DPdiamond............................................................................................... DMD ............. dmddiamond-pyramid hardness....................................................................... DPH .............. DPHdiaphragm ............................................................................................ DIAPH........... diaphdiaphragm gland .................................................................................... DGLD............ dglddiazo print ............................................................................................ DPR .............. dprdie lock ............................................................................................... DLX .............. dlxdie template .......................................................................................... DT ................ DTdielectric.............................................................................................. DIEL ............. dieldiesel .................................................................................................. DSL............... dsldiesel belt drive ..................................................................................... DBD.............. DBDdiesel direct .......................................................................................... DD ................ dddiesel engine ......................................................................................... DENG............ dengdiesel engine, direct drive......................................................................... DED .............. DEDdiesel engine, reduction drive.................................................................... DER .............. DERdiesel mechanical................................................................................... DM ............... DMdiesel oil .............................................................................................. DO ................ DOdiesel v-belt drive................................................................................... DVBD............ DVBDdiesel-electric........................................................................................ DE ................ dediethanolamine ...................................................................................... DEA .............. deadifference............................................................................................. DIFF.............. diffdifference channel .................................................................................. DCHAN ......... dchandifferential ........................................................................................... DIFF.............. diffdifferential amplifier ............................................................................... DIFA ............. difadifferential pressure ................................................................................ DP ................ DPdifferential thermocouple voltmeter ............................................................ DTVM ........... DTVMdifferential time relay.............................................................................. DIFFTR.......... difftrdiffraction ............................................................................................ DIFFR ........... diffrdiffusing .............................................................................................. DIFFUS.......... diffusdigital.................................................................................................. DGTL ............ dgtldigital block AND-OR gate ...................................................................... DBAO............ DBAOdigital counting unit................................................................................ DCU.............. DCUdigital differential analyzer....................................................................... DDA.............. DDAdigital microcircuit ................................................................................. DMC ............. DMCdigital voltmeter .................................................................................... DVM ............. DVMdigital-to-analog .................................................................................... DA ................ DAdigital-to-analog converter ....................................................................... DAC.............. DACdigitally directed control .......................................................................... DDC.............. DDC



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digitizer ............................................................................................... DGTZR ..........dgtzrdihydrate .............................................................................................. DIHY.............dihydilute................................................................................................... DIL................dildimension............................................................................................. DIM...............dimdimmer ................................................................................................ DMR..............dmrdining.................................................................................................. DNG..............dngdiode ................................................................................................... DIO ...............diodiode resistor transistor logic..................................................................... DRTL.............DRTLdiode transistor logic ............................................................................... DTL...............DTLdiopter ................................................................................................. DIOPT ...........dioptdiplex .................................................................................................. DIPX .............dipxdiplexer................................................................................................ DIPLXR .........diplxrdipstick................................................................................................ DPSK.............dpskdirect................................................................................................... DIR ...............dirdirect acting .......................................................................................... DACT ............dactdirect acting steam.................................................................................. DAS ..............DASdirect current......................................................................................... DC ................DCdirect distance dialing.............................................................................. DDD..............DDDdirect drive ........................................................................................... DDR ..............DDRdirect inward dialing ............................................................................... DID ...............DIDdirect memory access .............................................................................. DMA .............DMAdirect noise amplification ......................................................................... DINA.............DINAdirect outward dialing.............................................................................. DOD..............DODdirect-connect........................................................................................ DIRCONN ......dirconndirect-coupled transistor logic ................................................................... DCTL.............DCTLdirection............................................................................................... DIR ...............dirdirection finder ...................................................................................... DF.................dfdirectional ............................................................................................ DIR ...............dirdirectional coupler .................................................................................. DIRCOUP.......dircoupdirectional filter ..................................................................................... DIRFLT..........dirfltdirectly ................................................................................................ DRCTY ..........drctydirector ................................................................................................ DIR ...............dirdisable ................................................................................................. DSBL.............dsbldisassemble........................................................................................... DISASSM .......disassmdisassembly .......................................................................................... DISASSY........disassydiscarding sabot ..................................................................................... DS.................DSdischarge.............................................................................................. DISCH ...........dischdisconnect ............................................................................................ DISC..............discdisconnect switch ................................................................................... DS.................DSdisconnecting device ............................................................................... DD ................DDdiscontinue ........................................................................................... DSCONT ........dscontdiscrete fourier transform ......................................................................... DFT...............DFTdiscriminator ......................................................................................... DSCRM..........dscrmdisengaging........................................................................................... DSENGA........dsengadish-rinsing........................................................................................... DSHR ............dshrdishwasher............................................................................................ DW................dwdisk grind ............................................................................................. DG ................dgdisk operated system ............................................................................... DOS ..............DOSdisk storage unit..................................................................................... DSU ..............DSUdismantle.............................................................................................. DISM.............dismdispatcher............................................................................................. DISP ..............dispdispensary ............................................................................................ DISP ..............dispdispenser .............................................................................................. DISP ..............disp



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dispensing ............................................................................................ DSPNSG ........ dspnsgdisplacement......................................................................................... DISP.............. dispdisplay ................................................................................................ DSPL............. dspldisplay and control unit ........................................................................... DCU.............. DCUdisplay and storage ................................................................................. DS ................ DSdisposal ............................................................................................... DSPL............. dspldisposition............................................................................................ DISPN ........... dispndissipation factor.................................................................................... DF ................ DFdissolved.............................................................................................. DISLVD......... dislvddissolved oxygen ................................................................................... DO ................ DOdistance ............................................................................................... DIST ............. distdistance-measuring equipment .................................................................. DME ............. DMEdistant ................................................................................................. DIST ............. distdistant early warning............................................................................... DEW ............. DEWdistill .................................................................................................. DSTL............. dstldistillate............................................................................................... DSTLT........... dstltdistilled water ....................................................................................... DW ............... DWdistinguish............................................................................................ DISTING........ distingdistortion ............................................................................................. DISTN ........... distndistress ................................................................................................ DTRS ............ dtrsdistribute.............................................................................................. DISTR ........... distrdistributed emission magnetron amplifier..................................................... DEMA ........... DEMAdistribution amplifier .............................................................................. DAMP ........... DAMPdistribution box ..................................................................................... DB ................ DBdistribution panel ................................................................................... DPNL ............ DPNLdistributor ............................................................................................ DISTR ........... distrdistrict ................................................................................................. DIST ............. distdither .................................................................................................. DTER ............ dterditto .................................................................................................... DO ................ dodiver ................................................................................................... DVR.............. dvrdiverter................................................................................................ DIV............... divdivide.................................................................................................. DIV............... divdivision ............................................................................................... DIV............... divdo not use............................................................................................. DNU.............. DNUdocking ............................................................................................... DCKG............ dckgdocument ............................................................................................. DOC.............. docdoes not apply ....................................................................................... DNA.............. DNAdogged ................................................................................................ DG ................ dgdolly ................................................................................................... DLY .............. dlydomestic .............................................................................................. DOM ............. domdomestic service .................................................................................... DS ................ DSdominant wavelength .............................................................................. DWL ............. DWLdoor closer ........................................................................................... DCL .............. DCLdoor stop.............................................................................................. DST............... DSTdoor switch........................................................................................... DSW ............. DSWdoppler velocity and position .................................................................... DOVAP.......... DOVAPdots per inch ......................................................................................... DPI ............... dpidouble ................................................................................................. DBL .............. dbldouble bottom ....................................................................................... DB ................ DBdouble break ......................................................................................... DB ................ DBdouble contact ....................................................................................... DC ................ DCdouble density ....................................................................................... DD ................ dddouble end............................................................................................ DE ................ DE



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double extra strong ................................................................................. XXSTR ..........xxstrdouble face ........................................................................................... DBLF.............DBLFdouble feeder ........................................................................................ DF.................DFdouble secondary current transformer.......................................................... DSCT.............DSCTdouble sided.......................................................................................... DS.................dsdouble single-sideband ............................................................................ DSSB.............DSSBdouble weight........................................................................................ DW................DWdouble-acting ........................................................................................ DBLACT ........DBLACTdouble-acting door.................................................................................. DAD..............DADdouble-acting steam ................................................................................ DASTM..........DASTMdouble-based solid propellant .................................................................... DBSP.............DBSPdouble-biased [relay]............................................................................... DB ................DBdouble-groove double-petticoat [insulators] .................................................. DGDP ............DGDPdouble-groove [insulators] ........................................................................ DG ................DGdouble-hung windows ............................................................................. DHW .............DHWdouble-pole........................................................................................... DP.................DPdouble-pole back-connected...................................................................... DPBC ............DPBCdouble-pole double-throw......................................................................... DPDT.............DPDTdouble-pole double-throw switch ............................................................... DPDTSW........DPDTSWdouble-pole front-connected...................................................................... DPFC.............DPFCdouble-pole single-throw.......................................................................... DPST .............DPSTdouble-pole single-throw switch ................................................................ DPSTSW ........DPSTSWdouble-pole switch ................................................................................. DPSW ............DPSWdouble-sideband..................................................................................... DSB...............DSBdouble-throw......................................................................................... DT.................DTdouble-wall........................................................................................... DBLW ...........DBLWdouble-wall fiberboard ............................................................................ DWLFBD .......DWLFBDdoubler ................................................................................................ DBLR ............dblrdouglas fir ............................................................................................ DF.................DFdovetail................................................................................................ DVTL ............dvtldowel .................................................................................................. DWL..............dwldown................................................................................................... DN ................dndowndraft ............................................................................................. DNDFT ..........dndftdownspout ............................................................................................ DS.................dsdozen .................................................................................................. DOZ ..............dozdraft .................................................................................................... DFT...............dftdraft stop.............................................................................................. DS.................DSdrafting................................................................................................ DFTG.............dftgdrafting machine .................................................................................... DFMACH .......DFMACHdrafting request...................................................................................... DR ................DRdrafting room manual .............................................................................. DRM..............DRMdraftsman ............................................................................................. DFTSMN........DFTSMNdrain ................................................................................................... DR ................drdrain tile............................................................................................... DT.................DTdram ................................................................................................... DR ................drdraw out............................................................................................... DO ................DOdrawbar pull.......................................................................................... DBP...............DBPdrawer ................................................................................................. DWR .............dwrdrawing................................................................................................ DWG .............dwgdrawing change notice ............................................................................. DC N .............DC Ndrawing list........................................................................................... DL.................DLdrawn .................................................................................................. DWN .............dwndredger ................................................................................................ DRGR ............drgr



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dressed and matched ............................................................................... DM ............... DMdressed [lumber] .................................................................................... DRS .............. drsdresser................................................................................................. DRSR ............ drsrdressing ............................................................................................... DRSG ............ drsgdrift .................................................................................................... DFT............... dftdrill .................................................................................................... DR ................ drdrill jig ................................................................................................ DJ ................. DJdrill plate ............................................................................................. DP ................ DPdrill rod ............................................................................................... DR ................ DRdrinking fountain ................................................................................... DF ................ DFdripproof.............................................................................................. DP ................ dpdripproof and ratproof ............................................................................. DPRP............. DPRPdripproof open....................................................................................... DPO .............. DPOdripproof protected................................................................................. DPP............... DPPdripproof semi-enclosed .......................................................................... DPS............... DPSdripproof totally enclosed......................................................................... DPT............... DPTdriptank ............................................................................................... DRTA............ drtadrive ................................................................................................... DR ................ drdrive end.............................................................................................. DE ................ DEdrive fit ............................................................................................... DF ................ DFdrive unit ............................................................................................. DRU.............. DRUdriver .................................................................................................. DRVR............ drvrdrone [aircraft] ...................................................................................... Q .................. Qdrop forge ............................................................................................ DF ................ DFdrop hammer die.................................................................................... DHD.............. DHDdrop manhole ........................................................................................ DMH ............. dmhdrop wood siding ................................................................................... DWS ............. DWSdry battery............................................................................................ DP ................ DPdry bulb ............................................................................................... DB ................ DBdry chemical ......................................................................................... DCHEM ......... dchemdry pipe valve ....................................................................................... DPV .............. DPVdrydock ............................................................................................... DD ................ DDdrying ................................................................................................. DYG.............. dygdual inline package................................................................................. DIP ............... DIPdual tires .............................................................................................. DT ................ DTdual-purpose ......................................................................................... DP ................ dpdual-speed drive .................................................................................... DSD .............. DSDduct type .............................................................................................. DCTP ............ DCTPdull black finish slate .............................................................................. DBFS............. DBFSdumbwaiter .......................................................................................... DW ............... dwdumbwaiter door.................................................................................... DWD............. DWDdummy................................................................................................ DUM ............. dumdumping .............................................................................................. DMPG ........... dmpgduplex ................................................................................................. DX ................ dxduplexer............................................................................................... DPLXR .......... dplxrduplicate .............................................................................................. DUP .............. dupdust and moisture ................................................................................... DUMR ........... DUMRdust-tight ............................................................................................. DT ................ DTdutch door ............................................................................................ DD ................ DDduty cycle ............................................................................................ DTYCY.......... DTYCYdwelling............................................................................................... DWEL ........... dweldynamic............................................................................................... DYN.............. dyndynamic breaking................................................................................... DYB.............. DYB



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dynamic octal load.................................................................................. DOL ..............DOLdynamite .............................................................................................. DYNMT .........dynmtdynamo................................................................................................ DYN..............dyndynamometer ........................................................................................ DYNMT .........dynmtdynamotor ............................................................................................ DYNM ...........dynm

Eeach .................................................................................................... EA.................eaeach face .............................................................................................. EF .................EFeach layer ............................................................................................. EL .................ELeach way .............................................................................................. EW................EWebony asbestos....................................................................................... EBASB...........ebasbeccentric .............................................................................................. ECC...............ecceccentric-orbit geophysical observatory ....................................................... EGO ..............EGOechelon ................................................................................................ ECH ..............echecho ranging ......................................................................................... ER.................ERecho sounding ....................................................................................... ES .................ESeconomize ............................................................................................ ECON ............econedge of cutter ........................................................................................ EOC ..............EOCedge thickness ....................................................................................... ET .................ETedgewise .............................................................................................. EDGW ...........edgweducation.............................................................................................. EDUC ............educeducator ............................................................................................... EDUC ............educeductor ................................................................................................ EDUC ............educeffect................................................................................................... EFT ...............efteffective............................................................................................... EFF ...............effeffective diameter of objective................................................................... EDO ..............EDOeffective focal length............................................................................... EFFL .............effleffective focal length............................................................................... EFL ...............EFLefficiency ............................................................................................. EFF ...............effeffluent ................................................................................................ EFL ...............eflejection................................................................................................ EJN ...............ejnejection seat .......................................................................................... EJNST............EJNSTejector ................................................................................................. EJCTR ...........elctrelapsed time.......................................................................................... ET .................ETelapsed-time code generator...................................................................... ETCG.............ETCGelastic.................................................................................................. ELAS.............elaselastic limit ........................................................................................... EL .................ELelasticity .............................................................................................. ELAS.............elaselbow .................................................................................................. ELB...............elbelectric................................................................................................. ELEC.............elecelectric contact ...................................................................................... ELCTC...........ELCTCelectric contact brush............................................................................... ELCTCBR ......ELCTCBRelectric contact ring................................................................................. ELCTRG ........ELCTRGelectric discharge tube ............................................................................. EDT...............EDTelectric dynamometer .............................................................................. EDYNMT .......EDYNMTelectric power and distribution................................................................... EPD...............EPDelectric power supply .............................................................................. EPS ...............EPSelectric water cooler................................................................................ EWC..............EWCelectric-motor driven............................................................................... EMD..............EMDelectrical discharge machining................................................................... EDM..............EDMelectrical metallic tubing .......................................................................... EMT ..............EMTelectrical resistance................................................................................. ER.................ER



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electrical specification............................................................................. ESPEC ........... ESPECelectrical time ....................................................................................... ET................. ETelectrical time, superquick........................................................................ ETSQ............. ETSQelectrically operated valve........................................................................ ELV .............. ELVelectrically polarized [relay] ..................................................................... EP................. EPelectro optical light modulator................................................................... EOLM............ EOLMelectrocardiogram .................................................................................. ECG .............. ECGelectrocardiograph.................................................................................. ECG .............. ECGelectrochemical diffused collector .............................................................. ECDC ............ ECDCelectrode .............................................................................................. ELCTD .......... elctdelectroencephalogram ............................................................................. EEG .............. EEGelectroencephalograph............................................................................. EEG .............. EEGelectrogasdynamics ................................................................................ EGD .............. egdelectrohydraulic ..................................................................................... ELHYD.......... elhydelectroluminescent ................................................................................. EL................. elelectroluminescent-photoconductive ........................................................... ELPC............. ELPCelectrolyte ............................................................................................ ELCTLT......... elctltelectrolytic ........................................................................................... ELCTLT......... elctltelectromagnetic ..................................................................................... EM................ emelectromagnetic intelligence ..................................................................... EMINT .......... EMINTelectromagnetic interference ..................................................................... EMI............... EMIelectromagnetic wave amplification by stimulated emission of radiation.............. EWASER ....... EWASERelectromechanical .................................................................................. ELMCH ......... ELMCHelectromotive force................................................................................. EMF .............. EMFelectron ............................................................................................... ELCTRN ........ elctrnelectron (n)-type semiconductor material ..................................................... N .................. Nelectron-coupled oscillator ....................................................................... ECO .............. ECOelectronic ............................................................................................. ELEK ............ elekelectronic automatic exchange................................................................... EAX .............. EAXelectronic checkout................................................................................. ECO .............. ECOelectronic control ................................................................................... ELECTC ........ ELECTCelectronic counter-countermeasures ............................................................ ECCM ........... ECCMelectronic countermeasures....................................................................... ECM.............. ECMelectronic countermeasures environment...................................................... ECME............ ECMEelectronic countermeasures program ........................................................... ECMP............ ECMPelectronic data processing ........................................................................ EDP............... EDPelectronic differential analyzer .................................................................. EDFA ............ EDFAelectronic digital analyzer ........................................................................ EDA .............. EDAelectronic funds transfer........................................................................... EFT............... EFTelectronic intelligence ............................................................................. ELINT ........... ELINTelectronic interface ................................................................................. EI.................. EIelectronic private branch exchange............................................................. EPBX ............ EPBXelectronic standard ................................................................................. ESTD............. ESTDelectronic switching................................................................................ ES................. ESelectronic voltmeter ................................................................................ EVM ............. EVMelectronic voltohmmeter .......................................................................... EVOM ........... EVOMelectronic warfare .................................................................................. EW................ EWelectronically alterable read-only memory.................................................... EAROM ......... EAROMelectronically steerable array radar ............................................................. ESAR ............ ESARelectronically steerable phased array radar.................................................... ESPAR........... ESPARelectronics............................................................................................ ELEX ............ elexelectronics switching system..................................................................... ESS ............... ESSelectroplate........................................................................................... EPL............... epl



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electropneumatic .................................................................................... ELPNEU.........elpneuelectrostatic........................................................................................... ES .................eselectrostatic discharge ............................................................................. ESD...............ESDelectrostatic discharge ............................................................................. ESD...............esdelectrostatic discharge resistive .................................................................. ESOS .............ESOSelectrostatic discharge sensitive ................................................................. ESDS .............esdselectrostatic sensitive .............................................................................. ESS ...............esselectrostatic storage tube .......................................................................... EST ...............ESTelement ................................................................................................ ELEM ............elemelementary............................................................................................ ELEM ............elemelevate ................................................................................................. ELEV.............elevelevation .............................................................................................. EL .................elelevator................................................................................................ ELEV.............eleveliminate .............................................................................................. ELIM .............elimelliptical............................................................................................... ELP ...............elpelliptical head ........................................................................................ ELPH.............ELPHelongate ............................................................................................... ELNG ............elngelongation ............................................................................................ ELONG ..........elongembedded wiring board............................................................................ EWB..............EWBemboss ................................................................................................ EMB..............embemergency ............................................................................................ EMER ............emerEmergency Coolant System ...................................................................... ECS ...............ECSemergency decelerating [relay] .................................................................. EDE...............EDEemergency identification light ................................................................... EIDLT............eidltemergency power ................................................................................... EPWR ............EPWRemergency power supply.......................................................................... EMPS ............EMPSemergency room .................................................................................... ER.................ERemergency ship service ............................................................................ ESS ...............ESSemission............................................................................................... EMSN ............emsnemitter ................................................................................................. EMTR ............emtremitter follower ..................................................................................... EF .................EFemitter [electron device] .......................................................................... E ...................Eemitter-coupled current-steered logic .......................................................... ECCSL...........ECCSLemitter-coupled logic .............................................................................. ECL...............ECLempennage ........................................................................................... EMP ..............empemployee.............................................................................................. EMPL ............emplemulator............................................................................................... EMU..............emuemulsion .............................................................................................. EMUL............emulenable.................................................................................................. ENBL.............enblenamel................................................................................................. ENAM ...........enamencapsulation ........................................................................................ ENCAP ..........encapencased................................................................................................ ENCSD ..........encsdenclose ................................................................................................ ENCL.............enclenclosure.............................................................................................. ENCL.............enclencode ................................................................................................. ENCD ............encdencoder ................................................................................................ ENCDR ..........encdrend cell switch....................................................................................... ECSW ............ECSWend half................................................................................................ EHF...............EHFend of part ............................................................................................ EOP...............EOPend of tape............................................................................................ EOT...............EOTend of transmission [computers]................................................................. EOT...............EOTend to end............................................................................................. EE .................EEendless tangent screw .............................................................................. ETS ...............ETS



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endstone .............................................................................................. ESTN............. estnenergize ............................................................................................... ENRGZ.......... enrgzenergy ................................................................................................. ENGY............ engyengage................................................................................................. ENGA............ engaengaging .............................................................................................. ENGA............ engaengine ................................................................................................. ENG .............. engengine drive.......................................................................................... ED ................ EDengine negative torque control................................................................... ENTC ............ ENTCengine oil ............................................................................................. EO ................ EOengine order.......................................................................................... EOR .............. EORengine propeller order ............................................................................. EPO............... EPOengine room.......................................................................................... ENGRM ......... ENGRMengine v-belt ......................................................................................... ENGV............ ENGVengineer............................................................................................... ENGR............ engrengineering........................................................................................... ENGRG.......... engrgengineering change notice ........................................................................ ECN .............. ECNengineering change order ......................................................................... ECO .............. ECOengineering change proposal EC................................................................ ECP............... ECPengineering change request....................................................................... ECR .............. ECRengineering department sketch .................................................................. EDSK ............ EDSKengineering field change .......................................................................... EFC............... EFCengineering order ................................................................................... EO ................ EOengineering release notice ........................................................................ ERN .............. ERNengineering sketch.................................................................................. ESK............... ESKengineering support activity...................................................................... ESA............... ESAengineering work order............................................................................ EWO ............. EWOEnglish ................................................................................................ ENG .............. Engengrave................................................................................................ ENGRV.......... engrvenlarge ................................................................................................ ENLG ............ enlgenlarged............................................................................................... ENLGD.......... enlgdenlisted men ......................................................................................... EM................ EMentrance............................................................................................... ENTR ............ entrenumeration.......................................................................................... ENUM ........... enumenvelope .............................................................................................. ENV .............. envenvironment.......................................................................................... ENVIR........... envirenvironmental ....................................................................................... ENVIR........... envirepitaxial mesa ....................................................................................... EM................ EMepitaxial planar ...................................................................................... EP................. EPequal................................................................................................... EQL .............. eqlequal section ......................................................................................... ES................. ESequalizer .............................................................................................. EQL .............. eqlequally ................................................................................................ EQL .............. eqlequally spaced....................................................................................... EQLSP........... eqlspequation............................................................................................... EQ ................ eqequilibrium........................................................................................... EQUIL ........... equilequip and install..................................................................................... EI.................. EIequipage category number........................................................................ ECN .............. ECNequipment ............................................................................................ EQPT............. eqptequipment and spare parts ........................................................................ ESP ............... ESPequipment condition analysis .................................................................... ECA .............. ECAequivalent ............................................................................................ EQUIV........... equivequivalent airspeed................................................................................. EAS............... EASequivalent direct radiation ........................................................................ EDR .............. EDR



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equivalent focal length............................................................................. EFL ...............EFLequivalent focal length............................................................................. EQFL.............eqflequivalent series resistance ....................................................................... ESR ...............ESRequivalent-noise-sideband input ................................................................. ENSI..............ENSIerasable programmable read-only memory ................................................... EPROM..........EPROMerased.................................................................................................. ERS ...............erserecting................................................................................................ ERCG ............ercgerection................................................................................................ ERECT...........erecterector ................................................................................................. ERCR ............ercrerror correction ...................................................................................... ERRC ............ERRCerror correction code ............................................................................... ECC...............ECCescape ................................................................................................. ESC ...............escescutcheon............................................................................................ ESC ...............escespecially ............................................................................................. ESP ...............espestimate ............................................................................................... EST ...............estestimated completion date ........................................................................ ECD ..............ECDet cetera ............................................................................................... ETC...............etcethylene oxide ....................................................................................... EO.................EOevacuate............................................................................................... EVAC ............evacevacuator.............................................................................................. EVAC ............evacevaluate ............................................................................................... EVAL ............evalevaluation............................................................................................. EVLTN ..........evltnevaporate.............................................................................................. EVAP.............evapevaporator ............................................................................................ EVAP.............evapever-lock .............................................................................................. EVRLK ..........evrlkexamination .......................................................................................... EXAM ...........examexample ............................................................................................... EX.................exexcavate............................................................................................... EXC ..............excexcellent .............................................................................................. EXC ..............excexcept.................................................................................................. EXC ..............excexcessive.............................................................................................. EXCSV ..........excsvexchange .............................................................................................. EXCH ............exchexcitation ............................................................................................. EXC ..............excexciter ................................................................................................. EXCTR ..........exctrexclusive .............................................................................................. EXCL.............exclexecute ................................................................................................ EXEC.............execexecutive.............................................................................................. EXEC.............execexercise................................................................................................ EXER.............exerexhaust ................................................................................................ EXH ..............exhexhaust gas temperature ........................................................................... EGT...............EGTexhaust vent .......................................................................................... EXHV ............EXHVexhibit ................................................................................................. EXH ..............exhexisting................................................................................................ EXST.............exstexit guide vane ...................................................................................... EGV ..............EGVexpand................................................................................................. EXP...............expexpanded binary-coded decimal interchange code .......................................... EBCDIC .........EBCDICexpanded direct distance dialing................................................................. EDDD ............EDDDexpanded metal...................................................................................... EM ................EMexpansion ............................................................................................. EXP...............expexpansion joint ...................................................................................... EXPJT............expjtexpedite ............................................................................................... EXPED...........expedexpendable ........................................................................................... EXPEN...........expenexpense................................................................................................ EXP...............exp



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experiment ........................................................................................... EXP............... expexperimental ......................................................................................... EXP............... expexperimental order ................................................................................. EXPO ............ EXPOexperimental testing [aircraft] ................................................................... X .................. Xexplanation........................................................................................... EXPL............. explexplode................................................................................................ EXPLD .......... expldexploitation .......................................................................................... EXPLTN ........ expltnexplosion ............................................................................................. EXPLN .......... explnexplosion-proof ..................................................................................... EP................. EPexplosive ............................................................................................. XPL............... xplexplosive device .................................................................................... XPLD ............ XPLDexplosive ordnance disposal...................................................................... EOD .............. EODexponent .............................................................................................. EXPNT .......... expntexponential........................................................................................... EXPNT .......... expntexposed ............................................................................................... EXP............... expexposure .............................................................................................. EXPSR........... expsrexpress ................................................................................................ EXP............... expexpulsion ............................................................................................. EXP............... expextender............................................................................................... EXTND.......... extndextension ............................................................................................. EXT .............. extexterior................................................................................................ EXT .............. extexternal ............................................................................................... EXT .............. extexternal pipe thread ................................................................................ EPT............... EPTextinguish ............................................................................................ EXT .............. extextra ................................................................................................... EX ................ exextra control wire ................................................................................... ECWIRE ........ ECWIREextra fine [threads] ................................................................................. EF................. EFextra heavy........................................................................................... XHVY ........... XHVYextra strong .......................................................................................... XSTR ............ XSTRextra-long wheel base.............................................................................. XLWB ........... XLWBextracting ............................................................................................. EXTG ............ extgextractor .............................................................................................. EXTR ............ extrextraordinary wave................................................................................. XWAVE......... XWAVEextreme ............................................................................................... EXTM............ extmextreme high water ................................................................................. EHW ............. EHWextreme low water.................................................................................. ELW.............. ELWextremely high frequency......................................................................... EHF............... EHFextremely low frequency.......................................................................... ELF............... ELFextrude ................................................................................................ EXTD ............ extdextrusion.............................................................................................. EXTRN.......... extrnextrusion trim and drill template ................................................................ ETDT ............ ETDTextrusion trim template............................................................................ ETT............... ETTeye guard ............................................................................................. EGRD............ EGRDeye lens ............................................................................................... EL................. ELeyelet .................................................................................................. EYLT ............ eylteyepiece............................................................................................... EYPC ............ eypc

Ffabricate............................................................................................... FAB .............. fabface or field of drawing ........................................................................... FD ................ FDface to face ........................................................................................... FF ................. FFface width ............................................................................................ FW................ FWfaceplate .............................................................................................. FP ................. FP



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facility ................................................................................................. FACIL............facilfacing .................................................................................................. FCG...............fcgfacsimile .............................................................................................. FAX ..............faxfactor................................................................................................... FAC...............facfactory ................................................................................................. FCTY.............fctyfactual complier ..................................................................................... FACT.............FACTFahrenheit ............................................................................................ F ...................Ffailure.................................................................................................. FLR ...............flrfailure rate ............................................................................................ FR .................FRfairing ................................................................................................. FAIR..............fairfairwater planes ..................................................................................... FWPLN ..........FWPLNfamiliar ................................................................................................ FAM..............famfan in................................................................................................... FNI................FNIfan out ................................................................................................. FNO ..............FNOfar side ................................................................................................ FS .................FSfast automatic shuttle transfer .................................................................... FAST .............FASTfast Fourier transform.............................................................................. FFT ...............FFTfast operate [relay].................................................................................. FO.................FOfast release [relay] .................................................................................. FR .................FRfast time constant ................................................................................... FTC ...............FTCfastener ................................................................................................ FSTNR...........fstnrfault .................................................................................................... FLT ...............fltfault isolation test ................................................................................... FIT ................FITfeasible ................................................................................................ FSBL .............fsblfeather ................................................................................................. FTR ...............ftrFebruary .............................................................................................. FEB ...............FebFederal ................................................................................................ FED...............FedFederal Specification............................................................................... FS .................FSFederal Stock Number ............................................................................. FSN ...............FSNFederal Supply Catalog Identification List.................................................... FSCIL ............FSCILFederal Supply Code for Manufacturers....................................................... FSCM ............FSCMfeedback .............................................................................................. FDBK ............fdbkfeedback positive ................................................................................... FP .................FPfeedback potentiometer............................................................................ FPOT .............FPOTfeedback resistance ................................................................................. FBR...............FBRfeeder .................................................................................................. FDR...............fdrfeedwater ............................................................................................. FDW..............fdwfeedwater pump ..................................................................................... FWP ..............FWPfeeler................................................................................................... FELR .............felrfemale ................................................................................................. FEM ..............femfemale flared ......................................................................................... FFL ...............FFLfemale pipe thread .................................................................................. FPT ...............FPTfemale soldered...................................................................................... FS .................FSfemale thread ........................................................................................ FTHRD ..........FTHRDferrule-contact ....................................................................................... FERCON ........ferconfiber .................................................................................................... FBR...............FBRfiberboard............................................................................................. FBRBD ..........fbrbdfiberboard, corrugated ............................................................................. FBDC ............FBDCfiberboard, double wall ............................................................................ FDWL............FDWLfiberboard, solid..................................................................................... FBDS.............FBDSfibrous ................................................................................................. FBRS .............fbrsfield .................................................................................................... FLD...............fldfield accelerator ..................................................................................... FAC...............FAC



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field artillery ......................................................................................... FA ................ FAfield decelerator..................................................................................... FDE............... FDEfield discharge....................................................................................... FDI ............... FDIfield dynamic braking ............................................................................. FDB .............. FDBfield failure........................................................................................... FFL ............... FFLfield forcing [decreasing] ......................................................................... FFD............... FFDfield forcing [increasing].......................................................................... FFI ................ FFIfield manual.......................................................................................... FM ................ FMfield protective ...................................................................................... FP ................. FPfield reversing ....................................................................................... FR................. FRfield service .......................................................................................... FS ................. FSfield service modification work order.......................................................... FSMWO......... FSMWOfield support equipment ........................................................................... FSE ............... FSEfield switch........................................................................................... FSW .............. FSWfield weakening ..................................................................................... FWK ............. FWKfield-effect transistor............................................................................... FET............... FETfighter [aircraft] ..................................................................................... F................... Ffigure .................................................................................................. FIG ............... figfilament ............................................................................................... FIL................ filfilament center tap.................................................................................. FCT............... FCTfilament ground ..................................................................................... FG ................ FGfile cabinet ........................................................................................... FC................. FCfile finish ............................................................................................. FF ................. FFfiller.................................................................................................... FLR............... flrfillet.................................................................................................... FIL................ filfilling .................................................................................................. FILL.............. fillfillister ................................................................................................ FIL................ filfillister head.......................................................................................... FILH ............. FILHfilm processing...................................................................................... FLMPRS ........ FLMPRSfilm sound ............................................................................................ FLMSD.......... FLMSDfilter.................................................................................................... FLTR............. FLTRfilter (comb form) .................................................................................. FL................. flfin-stabilized......................................................................................... FS ................. FSfinal assembly ....................................................................................... FA ................ FAfinal limit, down .................................................................................... FLDO ............ FLDOfinal limit, forward ................................................................................. FLF ............... FLFfinal limit, hoist ..................................................................................... FLH............... FLHfinal limit, lower .................................................................................... FLL............... FLLfinal limit, reverse .................................................................................. FLR............... FLRfinal limit, up ........................................................................................ FLU............... FLUfind number .......................................................................................... FN ................ FNfinder .................................................................................................. FDR .............. fdrfinger .................................................................................................. FGR .............. fgrfinish .................................................................................................. FNSH ............ fnshfinish all over ........................................................................................ FAO .............. FAOfinish one side ....................................................................................... F1S ............... F1Sfinish specification [number] .................................................................... FS ................. FSfinish two sides...................................................................................... F2S ............... F2Sfire alarm bell........................................................................................ FABL ............ FABLfire alarm box........................................................................................ FABX ............ FABXfire and bilge......................................................................................... FB................. FBfire and flushing..................................................................................... FF ................. FFfire control ........................................................................................... FC................. FC



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Fire Control System ................................................................................ FCS ...............FCSfire department connection ....................................................................... FDC...............FDCfire door ............................................................................................... FDR...............FDRfire extinguisher ..................................................................................... FEXT.............FEXTfire fighting........................................................................................... FF .................FFfire hose ............................................................................................... FH.................FHfire hose rack......................................................................................... FHR...............FHRfire hydrant ........................................................................................... FHY ..............FHYfire main .............................................................................................. FM ................FMfire plug ............................................................................................... FPL ...............fplfire room .............................................................................................. FRM ..............frmfire station ............................................................................................ FS .................FSfire wall ............................................................................................... FW ................FWfire-hose cabinet..................................................................................... FHC...............FHCfire-resistant.......................................................................................... FRES .............FRESfirebrick ............................................................................................... FBCK ............fbckfireclay ................................................................................................ FC .................fcfireplace............................................................................................... FP .................fpfireproof............................................................................................... FPRF .............fprffirmware .............................................................................................. FMW .............fmwfirst reduction ........................................................................................ 1 RED ............1 redfirst stage ............................................................................................. 1 STG ............1 stgfirst-aid box .......................................................................................... FAB...............fabfirst-in-first-out ...................................................................................... FIFO..............FIFOfiscal year............................................................................................. FY.................FYfishpaper .............................................................................................. FPPR .............fpprfission ................................................................................................. FSSN .............fssnfitted ................................................................................................... FTD...............ftdfitting .................................................................................................. FTG...............ftgfixed ................................................................................................... FXD ..............fxdfixed autotransformer .............................................................................. FATR.............FATRfixed point ............................................................................................ FXP ...............FXPfixed transom ........................................................................................ FTR ...............FTRfixture ................................................................................................. FXTR.............fxtrflagnote (number)................................................................................... FL .................FLflagstaff ............................................................................................... FLGSTF .........flgstfflagstone .............................................................................................. FLGSTN.........flgstflame................................................................................................... FLM ..............flmflame resistant ....................................................................................... FLMRES ........FLMREflame retardant ...................................................................................... FLMRTD........FLMRTDflameproof............................................................................................ FLMPRF.........flmprflametight............................................................................................. FLMTT ..........flmttflammable ............................................................................................ FLMB ............flmbflange .................................................................................................. FLG...............flgflange focal distance ............................................................................... FD.................FDflapper ................................................................................................. FLPR .............flprflared................................................................................................... FLRD.............flrdflared tube fitting.................................................................................... FTF ...............FTFflared tube fitting gasket seal..................................................................... FTFGS ...........FTFGSflaring ................................................................................................. FLRG.............FLRGflash welding......................................................................................... FLW ..............FLWflashing................................................................................................ FL .................flflashless ............................................................................................... FLHLS ...........flhls



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flashless nonhygroscopic ......................................................................... FNH .............. FNHflashlight.............................................................................................. FLT............... fltflat bar................................................................................................. FB................. FBflat fillister head..................................................................................... FFILH............ FFILHflat head............................................................................................... FLH............... FLHflat nose [projectile]................................................................................ FN ................ FNflat oval ............................................................................................... FO ................ FOflat pattern............................................................................................ FP ................. FPflat point .............................................................................................. FP ................. FPflat tile roof .......................................................................................... FTR............... FTRflat trim template ................................................................................... FTT............... FTTflat washer............................................................................................ FLW.............. FLWflat work .............................................................................................. FLWK............ FLWKflat-band metallicarmor [insul] .................................................................. F................... Fflatten.................................................................................................. FLN............... flnfleet ballistic missile ............................................................................... FBM.............. FBMflexible ................................................................................................ FLEX............. flexflexure................................................................................................. FLEX............. flexflight................................................................................................... FLT............... fltFlight Control Ready Light System ............................................................ FCRLS........... FCRLSflight data entry ..................................................................................... FLIDEN ......... FLIDENflight deck ............................................................................................ FLDK ............ FLDKflight space........................................................................................... FLSP ............. FLSPflint .................................................................................................... F................... Fflip-flop ............................................................................................... FF ................. FFflip-flop complementary .......................................................................... FFC............... FFCflip-flop latch ........................................................................................ FFL ............... FFLfloat .................................................................................................... FLT............... fltfloating................................................................................................ FLTG............. fltgfloating commutator ............................................................................... FLOCOM ....... FLOCOMfloating machine shop ............................................................................. FMS .............. FMSfloating-point instruction set ..................................................................... FIS ................ FISflood [vent] .......................................................................................... FL................. flflooding............................................................................................... FLDNG.......... fldngfloodlight ............................................................................................. FLDT............. fldtfloor.................................................................................................... FL................. flfloor drain ............................................................................................ FD ................ FDfloor line .............................................................................................. FL................. FLflooring ............................................................................................... FLG............... flgfloppy disc ........................................................................................... FD ................ fdflotation............................................................................................... FLOT............. flotflow line .............................................................................................. FLL............... FLLflow rate .............................................................................................. FLRT............. FLRTflow switch........................................................................................... FLSW ............ FLSWfluid.................................................................................................... FL................. flfluid flow ............................................................................................. FDFL............. FDFLfluid pressure line................................................................................... FDPL............. FDPLfluked.................................................................................................. FLKD ............ flkdfluorescent ........................................................................................... FLUOR .......... fluorfluorescent penetrant inspection................................................................. FPI ................ FPIflurry .................................................................................................. FLRY ............ flryflush ................................................................................................... FL................. flflush armor balance watertight hatch........................................................... FABWH ......... FABWH



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flush metal threshold ............................................................................... FMT ..............FMTflush mount........................................................................................... FLMT ............FLMTflush oiltight ventilation hole..................................................................... FOVH ............FOVHflush threshold....................................................................................... FT .................FTflush type ............................................................................................. FLTP .............FLTPflush value............................................................................................ FV.................FVflute lead .............................................................................................. FL .................FLfluted................................................................................................... FLTD.............fltdfluted socket.......................................................................................... FLUSOC.........FLUSOCfluted socket head................................................................................... FLUSOCH ......FLUSOCHflutter .................................................................................................. FLUT.............flutflux logic element array ........................................................................... FLEA.............FLEAflyweight.............................................................................................. FLYWT..........flywtflywheel............................................................................................... FLYWHL........flywhlfoam liquid ........................................................................................... FOLQ.............FOLQfocal.................................................................................................... FOC...............focfocal length........................................................................................... FL .................FLfocus ................................................................................................... FOC...............focfocusing ............................................................................................... FCSG.............fcsgfog foam .............................................................................................. FOFM ............FOFMfog oil smoke generator ........................................................................... FOSGEN ........FOSGENfoggy................................................................................................... FGY ..............fgyfolding................................................................................................. FLDG.............fldgfolding-fin aircraft rocket ......................................................................... FFAR.............FFARfoldout................................................................................................. FO.................fofollow.................................................................................................. FOL...............folfollow-up ............................................................................................. FLWP ............flwpfollowing.............................................................................................. FF .................fffood service .......................................................................................... FDSVC...........FDSVCfoot ..................................................................................................... FT .................ftfoot board measure ................................................................................. FBM ..............FBMfoot per minute ...................................................................................... FPM ..............FPMfoot per second ...................................................................................... FPS................FPSfoot pound force..................................................................................... FTLB .............FTLBfoot-pound-second.................................................................................. FPS................FPSfootcandle ............................................................................................ FC .................fcfooting................................................................................................. FTG...............ftgfootlambert ........................................................................................... fL..................fLfor example........................................................................................... EG.................egfor your information and guidance.............................................................. FYIG .............FYIGforce ................................................................................................... F ...................Fforced-draft........................................................................................... FD.................FDforced-draft blower ................................................................................. FDB...............FBDfore and aft ........................................................................................... FA.................FAforecastle.............................................................................................. FCSLE ...........fcsleforeign object damage ............................................................................. FOD ..............FODforeign service....................................................................................... FS .................FSforeman ............................................................................................... FMAN............fmanforepeak............................................................................................... FP .................fpforesight............................................................................................... FS .................fsforged.................................................................................................. FGD ..............fgdforged steel ........................................................................................... FST ...............FSTforging................................................................................................. FORG ............forg



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forked ................................................................................................. FKD .............. FKDform block template................................................................................ FBT............... FBTformation ............................................................................................. FORM ........... formformer ................................................................................................. FRMR............ frmrformula................................................................................................ FORM ........... formformula translation ................................................................................. FORTRAN...... FORTRANforward................................................................................................ FWD ............. fwdforward ballast tank ................................................................................ FBT............... FBTforward engine room............................................................................... FER............... FERforward perpendicular ............................................................................. FP ................. FPforward propagation tropospheric scatter ..................................................... FPTS ............. FPTSfoundation............................................................................................ FDN .............. FDNfoundry................................................................................................ FDRY ............ fdryfour pole .............................................................................................. 4P ................. 4pfour pole double throw switch ................................................................... 4PDTSW ........ 4PDTSWfour pole switch..................................................................................... 4PSW ............ 4PSWfour-conductor ...................................................................................... 4/C ................ 4/cfour-dimensional.................................................................................... 4D................. 4dfour-pole single-throw switch.................................................................... 4PSTSW......... 4PSTSWfour-stage............................................................................................. 4STG............. 4STGfour-way .............................................................................................. 4WAY ........... 4WAYfour-wire.............................................................................................. 4W ................ 4Wfourth stage .......................................................................................... 4STG............. 4STGfoyer ................................................................................................... FOY .............. foyfractional ............................................................................................. FRAC ............ fracfragment .............................................................................................. FRAG ............ fragfragmentation........................................................................................ FRAG ............ fragframe .................................................................................................. FR................. frframe synchronization word...................................................................... FSW .............. FSWframework............................................................................................ FRWK ........... frwkfree aperture ......................................................................................... FA ................ FAfree height ............................................................................................ FRHGT .......... FRHGTfree on board......................................................................................... FOB .............. FOBfree-cutting brass ................................................................................... FCB............... FCBfreeboard ............................................................................................. FREEBD ........ freebdfreemachining steel ................................................................................ FMS .............. FMSfreezer................................................................................................. FRZR............. frzrfreezing point........................................................................................ FP ................. FPfreight ................................................................................................. FRT............... frtfreight supply [vessel] ............................................................................. FS ................. FSfrench fry ............................................................................................. FRFY............. frfyfrequency ............................................................................................. FREQ ............ freqfrequency (comb form)............................................................................ F................... ffrequency changer .................................................................................. FREQCHG...... freqchgfrequency converter ................................................................................ FREQCONV ... freqconvfrequency division.................................................................................. FD ................ FDfrequency division multiplex..................................................................... FDM.............. FDMfrequency doubler .................................................................................. FDBLR .......... FDBLRfrequency interference control ................................................................... FIC................ FICfrequency meter..................................................................................... FREQM.......... FREQMfrequency modulated radar ....................................................................... FMR.............. FMRfrequency modulation ............................................................................. FM ................ FMfrequency of optimum operation ................................................................ FOT............... FOT



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frequency time indicator .......................................................................... FTI ................FTIfrequency tracker ................................................................................... FT .................FTfrequency-shift keying............................................................................. FSK ...............FSKfresh water............................................................................................ FW ................FWfresh water drain collecting tank ................................................................ FWDCT..........FWDCTfresh water pump.................................................................................... FWP ..............FWPfriction................................................................................................. FRICT............frictfringe .................................................................................................. FRNG ............frngfrom below ........................................................................................... FRBEL...........frbelfront.................................................................................................... FR .................frfront connection ..................................................................................... FC .................FCfront end .............................................................................................. FRTN.............frtnfront focal length.................................................................................... FFL ...............FFLfront of board ........................................................................................ FOB...............FOBfront of dash.......................................................................................... FD.................FDfront upset jaw....................................................................................... FUJ................FUJfront vertex back focal distance.................................................................. FVD ..............FVDfront view............................................................................................. FV.................FVfront-connected...................................................................................... FC .................FCfrozen storage........................................................................................ FZSTO ...........fzstofuel and defueling................................................................................... FDF ...............FDFfuel indicator reading .............................................................................. FIR................FIRfuel injection line ................................................................................... FIL ................FILfuel injection pump................................................................................. FIP ................FIPfuel line ............................................................................................... FLN...............flnfuel oil ................................................................................................. FO.................FOfuel oil pump......................................................................................... FOP ...............FOPfuel service nozzle .................................................................................. FSN ...............FSNfuel tank............................................................................................... FTK...............FTKfuel transfer pump .................................................................................. FTP ...............FTPfuel-air ratio .......................................................................................... FARATIO .......faratiofuel-oil transfer ...................................................................................... FOT...............FOTfueling ................................................................................................. FLNG.............flngfueling-at-sea ........................................................................................ FAS ...............FASfulcrum................................................................................................ FUL...............fulfull dog point......................................................................................... FDP ...............FDPfull duplex teletype ................................................................................. FDTT.............FDTTfull field ............................................................................................... FF .................FFfull hard ............................................................................................... FH.................FHfull indicator movement ........................................................................... FIM ...............FIMfull indicator reading ............................................................................... FIR................firfull load ............................................................................................... FLLD.............flldfull scale .............................................................................................. FSC ...............fscfull size................................................................................................ FS .................fsfull voltage ........................................................................................... FV.................fvfull wave .............................................................................................. FW ................fwfull-load amperes ................................................................................... FLA...............flafully automatic compiler-translator ............................................................. FACT.............FACTfully heat-treated .................................................................................... FHT...............fhtfumetight.............................................................................................. FT .................ftfunction ............................................................................................... FCTN.............fctnfunctional configuration audit.................................................................... FCA...............FCAfunctional electronic block........................................................................ FEB ...............feb



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functional schematic ............................................................................... FS ................. FSfunctional test ....................................................................................... FT................. ftfunctional test requirement ....................................................................... FTR............... ftrfundamental.......................................................................................... FUND............ fundfungus proof ......................................................................................... FP ................. FPfunnel.................................................................................................. FUNL ............ funlfurnace ................................................................................................ FUR .............. furfurnish................................................................................................. FURN ............ furnfurniture............................................................................................... FURN ............ furnfuse block ............................................................................................ FB................. FBfuse box............................................................................................... FUBX ............ FUBXfuse holder ........................................................................................... FUHLR .......... fuhlrfuselage ............................................................................................... FUSLG .......... fuslgfuselage station...................................................................................... FS ................. FSfusible ................................................................................................. FSBL............. fsblfusible cutout ........................................................................................ FSBLCUT ...... fsblcutfusion point .......................................................................................... FNPT............. FNPTfuture .................................................................................................. FUT............... futfuze .................................................................................................... FZ................. fz

Ggage (gauge) ......................................................................................... GA ................ gagage board............................................................................................ GABD............ GABDgage code number .................................................................................. GCN.............. GCNgain time control.................................................................................... GTC .............. GTCgallery................................................................................................. GALL ............ gallgalley .................................................................................................. GALY............ galygallon.................................................................................................. GAL .............. galgallon per hour ...................................................................................... GPH .............. GPHgallon per minute ................................................................................... GPM.............. GPMgallon per second ................................................................................... GPS............... GPSgalvanic ............................................................................................... GALV............ galvgalvanize ............................................................................................. GALV............ galvgalvanized iron...................................................................................... GALVI........... galvigalvanized steel ..................................................................................... GALVS.......... galvsgalvanized-steel-wire rope........................................................................ GSWR ........... GSWRgalvannealed......................................................................................... GALVND ....... galvndgalvanometer ........................................................................................ GALVNM....... galvnmGamma Scintillation System..................................................................... GSS............... GSSgang punch........................................................................................... GP ................ GPgap-filler data........................................................................................ GFD .............. GFDgarage ................................................................................................. GAR.............. gargarbage................................................................................................ GBG.............. gbggarbage in, garbage out............................................................................ GIGO............. GIGOgarboard .............................................................................................. GARBD ......... garbdgarnish molding..................................................................................... GMLDG......... gmldggarter .................................................................................................. GTR .............. gtrgas amplification.................................................................................... GA ................ GAgas ejection .......................................................................................... GE ................ GEgas operated.......................................................................................... GOPR ............ GOPRgas turbine............................................................................................ GTRB ............ GTRBgas turbine compressor ............................................................................ GTC .............. GTCgas weld .............................................................................................. GASW ........... GASW



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gas, nonpersistent ................................................................................... GNP ..............GNPgas, persistent........................................................................................ GP.................GPgaseous mixture ..................................................................................... GM................gmgaseous oxygen...................................................................................... GOX..............goxgasket.................................................................................................. GSKT.............gsktgasoline ............................................................................................... GAS ..............gasgasoline engine ...................................................................................... GENG ............genggasoline engine, close-coupled .................................................................. GECC ............GECCgasoline-engine driven............................................................................. GED ..............GEDgasproof............................................................................................... GPF ...............gpfgastight ................................................................................................ GT.................gtgate turnoff ........................................................................................... GTO ..............GTOgate valve ............................................................................................. GTV ..............GTVgate [electron device] .............................................................................. G...................Ggear rack .............................................................................................. GRK ..............grkgear shaft ............................................................................................. GRSHFT.........grshngearbox................................................................................................ GRBX ............grbxgearcase ............................................................................................... GRC ..............grcgearing ................................................................................................ GRG ..............grggeneral................................................................................................. GENL ............genlgeneral contractor................................................................................... GENCONT......gencontgeneral note (number) ............................................................................. GN ................GNgeneral operational requirement ................................................................. GOR ..............GORgeneral plant equipment requirements ......................................................... GPER.............GPERgeneral purpose...................................................................................... GP.................9PGeneralized Information Retrieval and Listing System .................................... GIRLS............GIRLSgeneration ............................................................................................ GEN ..............gengenerator .............................................................................................. GEN ..............gengenerator field ....................................................................................... GFLD.............gfldgeological............................................................................................. GEOL ............geolgeomagnetism ....................................................................................... GEOMAG.......geomaggeometric dilution of precision .................................................................. GDOP ............GDOPgeometric mean ..................................................................................... GM................GMgeometry .............................................................................................. GMTRY .........gmtryGerman silver........................................................................................ GSIL..............GSILgimbal ................................................................................................. GMBL............gmblgirder .................................................................................................. G...................gglass.................................................................................................... GL.................glglass block............................................................................................ GLB ..............glbglaze ................................................................................................... GLZ...............glzglazed facing unit ................................................................................... GFU ..............GFUglazed structural facing unit ...................................................................... GSFU.............GSFUglazed structural unit base ........................................................................ GSUB ............GSUBglazed structural units.............................................................................. GSU ..............GSUglazed wall tile ...................................................................................... GWT..............GWTglazed wall tile base ................................................................................ GWTB ...........GWTBglazed wallboard .................................................................................... GLWB ...........glwbglide angle............................................................................................ GA ................GAglide slope ............................................................................................ GLS...............GLSglider................................................................................................... GLI................gliglobe stop valve ..................................................................................... GSV ..............GSVglobe valve ........................................................................................... GLV ..............GLVglossary ............................................................................................... GLOSS...........gloss



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glow plug............................................................................................. GLPG ............ glpgglycerin ............................................................................................... GLYCN.......... glycngold .................................................................................................... GLD .............. gldgoverning............................................................................................. GOVG ........... govggovernment .......................................................................................... GOVT............ govtgovernment test laboratory ....................................................................... GTL .............. GTLgovernment-furnished aircraft equipment..................................................... GFAE ............ GFAEgovernment-furnished equipment............................................................... GFE............... GFEgovernment-furnished material .................................................................. GFM.............. GFMgovernment-furnished parts ...................................................................... GFP............... GFPgovernment-furnished property.................................................................. GFP............... GFPGovernment-lndustry Data Exchange Program.............................................. GIDEP ........... GIDEPgovernment-loaned equipment .................................................................. GLE .............. GLEgovernor .............................................................................................. GOV.............. govgrab rod ............................................................................................... GR ................ grgrade................................................................................................... GR ................ grgrade ability.......................................................................................... GRAB............ grabgrade line ............................................................................................. GL ................ GLgradient ............................................................................................... GRAD............ gradgraduation ............................................................................................ GRDTN.......... grdtngrain ................................................................................................... GR ................ grgram ................................................................................................... G .................. ggranite................................................................................................. GRAN............ grangranodize ............................................................................................. GRAN............ grangranolithic base ..................................................................................... GRB .............. GRBgranolithic finish floor............................................................................. GFF............... GFFgranulated ............................................................................................ GNLTD.......... gnltdgraph isomorphism tester ......................................................................... GIT ............... GITgraphic ................................................................................................ GRPH ............ grphgraphic ammeter .................................................................................... GA ................ GAgraphic demand meter ............................................................................. GD ................ GDgraphic kilovolt-ampere meter................................................................... GVA.............. GVAgraphic varmeter .................................................................................... GRVA............ GRVAgraphite ............................................................................................... GPH .............. gphgrater .................................................................................................. GRTR ............ grtrgrating................................................................................................. GRTG............ grtggravel.................................................................................................. GVL .............. gvlgravel-surface buildup roof....................................................................... GSBR ............ GSBRgravity................................................................................................. G .................. ggray .................................................................................................... GRA.............. gragray .................................................................................................... GY ................ gygray iron .............................................................................................. GI ................. gigrease.................................................................................................. GRS .............. grsgrease nozzle ........................................................................................ GNOZ............ GNOZgrease trap............................................................................................ GT ................ GTgreatest common divisor .......................................................................... GCD.............. gcdgreen................................................................................................... G .................. ggreen................................................................................................... GRN.............. grngreen indicating lamp.............................................................................. GIL ............... GILgreen light ............................................................................................ GL ................ GLGreenwich mean time ............................................................................. GMT ............. GMTgrid leak .............................................................................................. GDLK............ GDLKgrid resistor .......................................................................................... GR ................ GR



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grid return ............................................................................................ GRTN ............GRTNgriddle ................................................................................................. GRDL ............grdlgrille ................................................................................................... GRL ..............grlgrind ................................................................................................... GRD ..............grdgrommet .............................................................................................. GROM ...........gromgroove ................................................................................................. GRV ..............grvgrooved................................................................................................ GRVD............grvdgroover ................................................................................................ GRVR ............grvrgrooving .............................................................................................. GRVG............grvggross ................................................................................................... GR ................grgross combined weight rating .................................................................... GCWR ...........gcwrgross vehicle weight................................................................................ GVW .............GVWgross weight.......................................................................................... GRWT ...........GRWTground ................................................................................................. GND..............gndground control center .............................................................................. GCC ..............GCCground detector...................................................................................... GD ................GDground glass.......................................................................................... GGL ..............GGLground lamp.......................................................................................... GRLP.............GRLPground mapping radar ............................................................................. GMR..............GMRground operation equipment...................................................................... GOE ..............GOEground speed......................................................................................... GS.................GSground support equipment ........................................................................ GSE...............GSEground zero........................................................................................... GZ.................GZground-controlled approach ...................................................................... GCA ..............GCAground-controlled interception................................................................... GCI ...............GCIground-fault interrupter............................................................................ GFI................GFIground-position indicator ......................................................................... GPI................GPIground-protective [relay].......................................................................... GP.................GPground-to-air ......................................................................................... GA ................GAground-to-ground ................................................................................... GG ................GGgrounded [outlet].................................................................................... G...................ggroup................................................................................................... GP.................gpgrown diffused ...................................................................................... GD ................GDgrown junction ...................................................................................... GJ .................GJguarantee.............................................................................................. GUAR............guarguaranteed minimum value....................................................................... GMV .............GMVguard................................................................................................... GD ................gdguard rail.............................................................................................. GDR ..............GDRguidance .............................................................................................. GDNC............gdncguide ................................................................................................... GDE ..............gdeguide light ............................................................................................ GLT...............gltguided ................................................................................................. GDE ..............gdeguided aircraft missile ............................................................................. GAM .............GAMguided aircraft rocket .............................................................................. GAR ..............GARguided missile ....................................................................................... GM................GMguided missile countermeasures ................................................................. GMCM...........GMCMguillotine.............................................................................................. GLTN ............gltngun carriage .......................................................................................... GCRG ............GCRGgun metal ............................................................................................. GMET............gmetgun motor carriage.................................................................................. GMC..............GMCgunnery................................................................................................ GUN..............gungunsight aiming point.............................................................................. GSAP.............GSAPgusset .................................................................................................. GUS ..............gus



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gutter .................................................................................................. GUT .............. gutgymnasium........................................................................................... GYM ............. gymgypsum................................................................................................ GYP .............. gypgypsum sheathing board .......................................................................... GSB .............. GSBgypsum wallboard .................................................................................. GWB ............. gwbgypsum-plaster ceiling ............................................................................ GPC .............. gpcgypsum-plaster wall................................................................................ GPW ............. gpwgyrocompass......................................................................................... GCMPS.......... gcmpsgyroscope............................................................................................. GYRO............ gyro

Hhalberd ................................................................................................ HLBRD.......... hlbrdhalf breadth .......................................................................................... HB ................ hbhalf dog point........................................................................................ 1/2DP ............ 1/2dphalf wave ............................................................................................. HW ............... HWhalf-hard .............................................................................................. 1/2H .............. 1/2hhalf-moon ............................................................................................ HLFM............ hlfmhalf-round ............................................................................................ 1/2RD ............ 1/2rdhalf-track ............................................................................................. HTRK............ htrkhalftone ............................................................................................... HT ................ htHalpern antiradar point............................................................................ HARP ............ HARPhammer ............................................................................................... HMR ............. hmrhand (comb form) .................................................................................. HD ................ hdhand control.......................................................................................... HNDCONT..... hndconthand crank............................................................................................ HC ................ HChand form block..................................................................................... HFB .............. HFBhand generator....................................................................................... HNDGEN ....... hndgenhand lantern.......................................................................................... HL ................ HLhand rail .............................................................................................. HNDRL.......... hndrlhand reset............................................................................................. HNDRST........ hndrsthandbook ............................................................................................. HDBK............ hdbkhandhold.............................................................................................. HH ................ hhhandhole .............................................................................................. HH ................ hhhandicap .............................................................................................. HDCP ............ hdcphandle ................................................................................................. HDL .............. hdlhandling............................................................................................... HDLG............ hdlghandling room....................................................................................... HR ................ hrhandset ................................................................................................ HNDST.......... hndsthandshake [computers] ............................................................................ HDSHK.......... hdshkhandwheel............................................................................................ HNDWL......... hndwlhanger ................................................................................................. HGR.............. hgrhanging ............................................................................................... HNG.............. hngharbor defense....................................................................................... HD ................ HDhard chromium ...................................................................................... HDCR............ HDCRhard disc .............................................................................................. HD ................ hdhard-drawn ........................................................................................... HDDRN ......... HDDRNharden ................................................................................................. HDN.............. hdnharden and grind .................................................................................... HG ................ HGhardened voice channel ........................................................................... HVCH............ HVCHhardened voice circuit ............................................................................. HVC.............. HVChardness............................................................................................... HDNS............ hdnshardness assurance ................................................................................. HA ................ HAhardness maintenance ............................................................................. HM ............... HM



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hardness surveillance .............................................................................. HS.................HShardness-critical item .............................................................................. HCI ...............HCIhardness-critical process .......................................................................... HCP...............HCPhardover............................................................................................... HDOV............hdovhardware .............................................................................................. HDW .............hdwhardware cloth....................................................................................... HDWC ...........hdwchardwood ............................................................................................. HDWD...........hdwdharmonic .............................................................................................. HMNC ...........hmncharmonic distortion................................................................................. HD ................HDharness ................................................................................................ HARN............harnharness leather ....................................................................................... HARNLTHR ...harnlthrhatch ................................................................................................... H...................hhaversine.............................................................................................. HAV..............havhazard beacon........................................................................................ HBCN ............HBCNhazardous ............................................................................................. HAZ ..............hazhead (comb form)................................................................................... H...................hhead and cover....................................................................................... HC ................hchead diameter ........................................................................................ HD ................hdhead wind............................................................................................. HW................hwheader ................................................................................................. HDR ..............hdrheading................................................................................................ HDG..............hdgheadless ............................................................................................... HDLS.............hdlsheadlining ............................................................................................ HLNG ............hlngheadquarters.......................................................................................... HQ ................hqheadset ................................................................................................ HDST.............hdstheat emergency service tanks .................................................................... HEST.............HESTheat exchange........................................................................................ HE.................HEheat shield ............................................................................................ HTSHLD ........htshldheat sink............................................................................................... HTSK.............htskheat-resisting......................................................................................... HTRES...........htresheat-treat .............................................................................................. HTTR.............httrheated.................................................................................................. HTD ..............htdheater .................................................................................................. HTR ..............htrheating................................................................................................. HTG ..............htgheating cabinet ...................................................................................... HC ................HCheavy .................................................................................................. HVY..............hvyheavy aircraft fuel .................................................................................. HAF ..............HAFheavy end aviation fuel ............................................................................ HEAF.............HEAFheavy machine gun ................................................................................. HMG .............HMGheavy-barrel [rifle].................................................................................. HB ................HBheavy-duty............................................................................................ HD ................HDheel breaster.......................................................................................... HLBR ............HLBRheel line ............................................................................................... HL.................HLheel sanding.......................................................................................... HLSD.............HLSDheel to heel ........................................................................................... HH ................HHheight .................................................................................................. HGT ..............hgtheight by width by length ......................................................................... HXWXL.........HXWXLheight finding ........................................................................................ HTF...............HTFhelical ................................................................................................. HLCL.............hlclhelical compression ................................................................................ HLCPS...........hlcpshelical extension .................................................................................... HLEXT ..........hlexthelicopter ............................................................................................. HLCPTR.........hlcptrhelipotentiometer ................................................................................... HPOT.............hpot



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helix angle............................................................................................ HLXA............ hlxahelper.................................................................................................. HLP............... hlphermetic sealed container ......................................................................... HSC .............. HSCherringbone .......................................................................................... HGBN............ hgbnhertz ................................................................................................... Hz................. Hzheterodyne ........................................................................................... HET .............. hethexachlorethane..................................................................................... HC ................ hchexagon............................................................................................... HEX .............. hexhexagonal head...................................................................................... HEXHD ......... hexhdhexagonal socket.................................................................................... HEXSOC........ hexsochexagonal socket head............................................................................. HEXSOCH ..... hexsochhigh altitude.......................................................................................... HA ................ HAhigh capacity [projectile] ......................................................................... HC ................ HChigh carbon .......................................................................................... HC ................ HChigh explosive ....................................................................................... HE ................ HEhigh fidelity .......................................................................................... HIFI .............. HIFIhigh frequency ...................................................................................... HF ................ HFhigh humidity........................................................................................ HIHUM.......... HIHUMhigh impact .......................................................................................... HIMP............. HIMPhigh intensity ........................................................................................ HINT............. HINThigh pass.............................................................................................. HP ................ HPhigh point............................................................................................. HPT............... HPThigh potential ........................................................................................ HIPOT ........... HIPOThigh pressure......................................................................................... HP ................ HPhigh speed ............................................................................................ HS ................ HShigh temperature .................................................................................... HTM ............. HTMhigh tensile ........................................................................................... HTNSL .......... HTNSLhigh tension .......................................................................................... HT ................ HThigh voltage.......................................................................................... HV ................ HVhigh-altitude platform ............................................................................. HAP .............. HAPhigh-altitude terrain contour data sensor ...................................................... HATCDS........ HATCDShigh-carbon steel.................................................................................... HCS .............. HCShigh-carbon steel, heat-treated................................................................... HCSHT .......... HCSHThigh-explosive antiaircra1t ....................................................................... HEAA............ HEAAhigh-explosive antitank ........................................................................... HEAT ............ HEAThigh-explosive armor-piercing................................................................... HEAP ............ HEAPhigh-explosive discarding sabot ................................................................. HEDS ............ HEDShigh-explosive incendiary ........................................................................ HEI ............... HEIhigh-explosive incendiary with tracer.......................................................... HEIT ............. HEIThigh-explosive plastic ............................................................................. HEP............... HEPhigh-explosive ramjet.............................................................................. HERJ ............. HERJhigh-explosive rocket-assisted................................................................... HERA............ HERAhigh-explosive spotting ........................................................................... HES............... HEShigh-explosive with tracer ........................................................................ HET .............. HEThigh-frequency current ............................................................................ HFCUR.......... HFCURhigh-frequency oscillator ......................................................................... HFO .............. HFOhigh-grade plow steel .............................................................................. HGPS ............ HGPShigh-level language [computers] ................................................................ HLL .............. HLLhigh-noise-immunity logic ....................................................................... HNIL ............. HNILhigh-potential test .................................................................................. HIPOTT ......... HIPOTThigh-power acquisition radar..................................................................... HIPAR ........... HIPARhigh-pressure steam ................................................................................ HPS............... HPShigh-pressure test ................................................................................... HPT............... HPT



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high-speed reader ................................................................................... HSR...............HSRhigh-speed steel ..................................................................................... HSS ...............HSShigh-tensile cast iron ............................................................................... HTCI .............HTCIhigh-tensile steel .................................................................................... HTS...............HTShigh-tensile strength................................................................................ HTS...............HTShigh-threshold logic ................................................................................ HTL...............HTLhigh-velocity, aircraft rocket ..................................................................... HVAR............HVARhigh-velocity, armor-piercing .................................................................... HVAP ............HVAPhigh-velocity, target practice ..................................................................... HVTP.............HVTPhigh-voltage regulator ............................................................................. HVR ..............HVRhigh-water line ...................................................................................... HWL..............HWLhighline................................................................................................ HL.................hlhighpass filter........................................................................................ HPFL .............HPFLhighway ............................................................................................... HWY .............hwyhinge ................................................................................................... HNG..............hnghinge jaw ............................................................................................. HJ .................HJhinge line ............................................................................................. HL.................HLhinge pillar ........................................................................................... HPLR.............HPLRhinged plotting board .............................................................................. HPB...............HPBhinged seat ........................................................................................... HS.................HShoist.................................................................................................... HST...............hsthold off generator................................................................................... HOGEN..........HOGENholddown ............................................................................................. HLDN ............hldnholder.................................................................................................. HLDR ............hldrholding ................................................................................................ HLDG ............hldgholding coil........................................................................................... HC ................HCholding fixture....................................................................................... HF.................HFhole (p)-type semiconductor material .......................................................... P ...................Phollow ................................................................................................. HOL ..............holhollow metal ......................................................................................... HM................hmhollow metal door and frame..................................................................... HMDF............HMDFhollow tile ............................................................................................ HT.................HThoming ................................................................................................ HOM .............homhone-finish monolithic floor...................................................................... HFMF ............HFMFhoneycomb ........................................................................................... HNYCMB.......hnycmbhonorary .............................................................................................. HON..............honhook rail............................................................................................... HR ................HRhookup ................................................................................................ HKP ..............hkphopper ................................................................................................. HPR...............hprhorizon ................................................................................................ HRZN ............hrznhorizon scanner...................................................................................... HSC...............HSChorizon sensor ....................................................................................... HS.................HShorizontal ............................................................................................. HORIZ ...........horizhorizontal (comb form)............................................................................ H...................hhorizontal center line............................................................................... HCL ..............HCLhorizontal impulse .................................................................................. HZMP ............HZMPhorizontal impulse reaction....................................................................... HIR ...............HIRhorizontal location of center of gravity ........................................................ HCG ..............HCGhorizontal reaction.................................................................................. HZRN ............HZRNhorizontal reference line........................................................................... HRL ..............HRLhorizontal shear ..................................................................................... HS.................HShorizontal tabulation ............................................................................... HT.................HThorizontal volute spring suspension ............................................................ HVSS.............HVSS



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horn fiber ............................................................................................. HNDFBR........ hndfbrhorn gap switch ..................................................................................... HGSW ........... HGSWhorsepower........................................................................................... HP ................ hphorsepower-hour.................................................................................... HPHR ............ HPHRhose bib ............................................................................................... HB ................ HBhose clamp ........................................................................................... HC ................ HChose connector ...................................................................................... HCONN ......... HCONNhose rack.............................................................................................. HR ................ HRhose thread ........................................................................................... HSTH ............ HSTHhospital................................................................................................ HOSP ............ hosphot brine pump ...................................................................................... HBPUMP ....... HBPUMPhot leg ................................................................................................. HLG .............. HLGhot side................................................................................................ HSD .............. HSDhot tin ................................................................................................. HT ................ HThot water.............................................................................................. HW ............... HWhot water, circulating .............................................................................. HWC ............. HWChot-galvanize ........................................................................................ HGALV ......... HGALVhot-press .............................................................................................. HP ................ HPhot-rolled ............................................................................................. HR ................ HRhot-rolled steel ...................................................................................... HRS .............. HRShot-rolled, pickled and oiled ..................................................................... HRPO ............ HRPOhot-water heater..................................................................................... HWH............. HWHhotwell ................................................................................................ HWL ............. hwlhour .................................................................................................... HR ................ hrhouse .................................................................................................. HSE............... hsehousehold............................................................................................. HSHLD.......... hshldhousing................................................................................................ HSG .............. hsghovering .............................................................................................. HVRNG ......... hvrnghowitzer............................................................................................... HOW............. howhowitzer motor carriage........................................................................... HMC ............. HMChowler................................................................................................. HW ............... hwhumid.................................................................................................. HMD ............. hmdhumidity .............................................................................................. HMD ............. hmdhunting ................................................................................................ HNTG............ hntghybrid ................................................................................................. HYB.............. hybhybrid electromagnetic wave .................................................................... HEMW .......... HEMWhybrid microelectronic assembly................................................................ HMA ............. hmahybrid microelectronic device ................................................................... HYBMED....... HYBMEDhydrated............................................................................................... HYDTD ......... hydtdhydraulic.............................................................................................. HYDR............ hydrhydraulic clean ...................................................................................... HC ................ HChydrid digital-analog and pulse time ........................................................... HYDAPT........ HYDAPThydro-form die ...................................................................................... HFD .............. HFDhydrocyanic acid.................................................................................... HCN.............. HCNhydroelectric......................................................................................... HYDRELC ..... hydrelchydrogen-ion concentration ...................................................................... pH................. pHhydrometer ........................................................................................... HYDM........... hydmhydrophone .......................................................................................... HYPH............ hyphhydrostatic ........................................................................................... HYDRST........ hydrsthyperbola ............................................................................................. HYPERB........ hyperbhyperbolic secant ................................................................................... SECH ............ sechhyperbolic sine ...................................................................................... SINH ............. sinhhyperbolic tangent.................................................................................. TANH............ tanh



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hyperfine structure.................................................................................. HFS ...............HFShypergolic clean..................................................................................... HGC ..............hgchypervelocity, armor-piercing ................................................................... HVAP ............HVAPhypervelocity, armor-piercing discarding sabot.............................................. HVAPDS ........HVAPDShypervelocity, target practice .................................................................... HVTP.............HVTPhypervelocity, target practice, discarding sabot .............................................. HVTPDS ........HVTPDShypotenuse ........................................................................................... HYP ..............hyphypothetical .......................................................................................... HYPOTH........hypoth

Iice cream.............................................................................................. ICRM............. icrmice-cuber .............................................................................................. ICBR ............. icbrideal lowpass filter.................................................................................. ILPFL ............ILPFLidentification ......................................................................................... IDENT ........... identidentification beacon ............................................................................... IBCN ............. ibcnidentification friend or foe ........................................................................ IFF ................IFFidentification friend or foe switching........................................................... IFFS ..............IFFSidentification light .................................................................................. IDLT.............. idltidentification number .............................................................................. IDNO............. idnoidentification of position .......................................................................... IP ..................IPidentified foe......................................................................................... IDFO .............IDFOidentify ................................................................................................ IDENT ........... identidler .................................................................................................... IDL................ idlignition ................................................................................................ IGN ............... ignignitor ................................................................................................. IGNTR ........... igntrignitron................................................................................................ IGN ............... ignilluminate ............................................................................................. ILLUM........... illumilluminating [projectiles] .......................................................................... SS .................ssillustrate............................................................................................... ILLUS............ illusillustrated parts breakdown ....................................................................... IPB................IPBillustrated parts catalog ............................................................................ IPC................IPCimage, storage translation and reproduction .................................................. ISTAR............ISTARimaginary ............................................................................................. IMAG ............ imagimitation .............................................................................................. IMIT .............. imitimmediate ............................................................................................ IMMED.......... immedimmersion ............................................................................................ IMRS ............. imrsimpact ................................................................................................. IMP ............... impimpedance ............................................................................................ IMPD............. impdimpedor ............................................................................................... IMPR ............. imprimpeller ............................................................................................... IMPLR ........... implrimperfect.............................................................................................. IMPF ............. impfimperial ............................................................................................... IMPRL ........... imprlimpingement ......................................................................................... IGMT............. igmtimplement ............................................................................................ IMPL ............. implimpose................................................................................................. IMPS ............. impsimpregnate............................................................................................ IMPRG........... imprgimpression ............................................................................................ IMPRSN......... imprsnimproved plow steel................................................................................ IMPPS............IMPPSimprovement ......................................................................................... IMPROV ........ improvimpulse................................................................................................ IMPLS ........... implsimpulse conductor .................................................................................. IC..................ICin accordance with.................................................................................. IAW ..............IAWin the place cited .................................................................................... LOCCIT ......... loccit



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inboard ................................................................................................ INBD............. inbdincandescent ......................................................................................... INCAND ........ incandincendiary ............................................................................................ INCND .......... incndincendiary bomb .................................................................................... IB ................. IBinch .................................................................................................... IN ................. ininch per second...................................................................................... IPS ................ IPSinch-pound ........................................................................................... INLB ............. inlbincinerator............................................................................................ INCIN............ incininclined ............................................................................................... INCLN........... inclninclined ladder....................................................................................... IL.................. ILinclosure .............................................................................................. INCLS ........... inclsinclude ................................................................................................ INCL ............. inclinclusive .............................................................................................. INCL ............. inclincoherent ............................................................................................ INCOH .......... incohincoming.............................................................................................. INCM ............ incmincomplete ........................................................................................... INCOMP ........ incompincomplete sequence [relay]...................................................................... IS.................. ISincorporated.......................................................................................... INC ............... INCincorrect .............................................................................................. INCOR........... incorincrease ............................................................................................... INCR............. incrincrement ............................................................................................. INCR............. incrincubator.............................................................................................. INCBR........... incbrindent.................................................................................................. INDT............. indtindentured data list ................................................................................. ID ................. IDindentured parts list ................................................................................ IPL................ IPLindependent .......................................................................................... INDEP ........... indepindeterminate ........................................................................................ INDET ........... indetindex................................................................................................... IDX............... idxindex list .............................................................................................. IL.................. ILindicate................................................................................................ IND............... indindicated airspeed .................................................................................. IAS ............... IASindicated horsepower-hour ....................................................................... IHPH ............. IHPHindicated mean effective pressure............................................................... IMEP............. IMEPindicating lamp...................................................................................... INDLP ........... indlpindicator driver ...................................................................................... ID ................. IDindicator-transmitter ............................................................................... INDTR........... INDTRindirect waste........................................................................................ IW................. iwindirectly ............................................................................................. IDRTY........... idrtyindividually .......................................................................................... INDV............. indvinduced draft......................................................................................... ID ................. IDinductance............................................................................................ IND............... indinductance (comb symbol) ....................................................................... L................... Linductance regulator ............................................................................... INDREG ........ indreginductance-capacitance............................................................................ LC ................ LCinductance-capacitance resistance .............................................................. LCR .............. LCRinduction.............................................................................................. IND............... indinduction compass.................................................................................. ICMPS ........... ICMPSinductor ............................................................................................... IDCTR ........... idctrinductosyn............................................................................................ ISYN ............. isynindustrial.............................................................................................. INDL............. indlpindustrial service.................................................................................... IS.................. ISindustry ............................................................................................... IND............... indinert .................................................................................................... INRT ............. inrt



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inert filler ............................................................................................. INRTFLR........INRTFLRinert gas ............................................................................................... INRTG ...........INRTGinertial ................................................................................................. INRTL ........... inrtlinertial demand servomotor....................................................................... IDSM.............IDSMInertial guidance .................................................................................... IG..................IGinertial guidance system........................................................................... IGS................IGSinertial measurement unit ......................................................................... IMU...............IMUinertialess scanning, tracking and ranging..................................................... INSTAR .........INSTARinference .............................................................................................. INFRN ........... infrninfinite................................................................................................. INF................ infinfinity................................................................................................. INF................ infinflatable .............................................................................................. IFL ................ iflinflating-deflating................................................................................... IFLDFL ..........IFLDFLinformation........................................................................................... INFO ............. infoinformation retrieval center....................................................................... IRC................IRCinformation sort and predict ...................................................................... ISAP..............ISAPinfrared................................................................................................ IR..................IRinfrared acquisition radar.......................................................................... IRACQR.........IRACQRinfrared countermeasures ......................................................................... IRCM.............IRCMinfrared maser ....................................................................................... IRASER .........IRASERinfrared monochromatic radiation............................................................... IRMRA ..........IRMRAingot ................................................................................................... IGT................ igtinhibit.................................................................................................. INHB ............. inhbinhibit halt flip-flop................................................................................. IHFF ..............IHFFinitial................................................................................................... INIT .............. initinitial velocity ....................................................................................... IV..................IVinitiation .............................................................................................. INIT .............. initinject ................................................................................................... INJ ................ injinlet .................................................................................................... INL................ inlinlet and outlet....................................................................................... IO..................IOinlet and outlet head................................................................................ IOH ...............IOHinlet guide vane...................................................................................... IGV ...............IGVinlet manhole ........................................................................................ IMH...............IMHinner ................................................................................................... INR ............... inrinner back end ....................................................................................... IBE................IBEinner bottom.......................................................................................... IB..................IBinner front end ....................................................................................... IFE ................IFEinner keel ............................................................................................. IK..................IKinoperative............................................................................................ INOP ............. inopinorganic .............................................................................................. INORG........... inorginput ................................................................................................... INP................ inpinput translator ...................................................................................... INXLTR .........INXLTRinput-output .......................................................................................... IO..................IOinput-output buffer ................................................................................. IOB ...............IOBinput-output element ............................................................................... IOE................IOEinput-output register................................................................................ IOR ...............IORinquiry................................................................................................. INQ ............... inqinscription ............................................................................................ INSC.............. inscinsect screen.......................................................................................... IS ..................ISinsecticide ............................................................................................ ICTCD ........... ictcdinseparable ........................................................................................... INSEP ............ insepinsert ................................................................................................... INSR.............. insrinsert character ...................................................................................... INSCHAR....... inschar



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insert screw thread ................................................................................. INST ............. INSTinside .................................................................................................. INS ............... insinside diameter ...................................................................................... ID ................. IDinside frosted ........................................................................................ IF.................. IFinside layer........................................................................................... IL.................. ILinside mold line ..................................................................................... IML............... IMLinside of metal....................................................................................... IM................. IMinside radius ......................................................................................... IR ................. IRinside trim template ................................................................................ ITT................ ITTinsignia................................................................................................ ISGN ............. isgninsoluble .............................................................................................. INSOL ........... insolinspect................................................................................................. INSP.............. inspinspection check fixture ........................................................................... ICF................ ICFinspection check template ........................................................................ ICT ............... ICTinstall .................................................................................................. INSTL............ instlinstallation ........................................................................................... INSTL............ instlinstallation and maintenance ..................................................................... IM................. IMinstaller ............................................................................................... INSTLR ......... instlrinstantaneous ........................................................................................ INST ............. instinstantaneous automatic gain control........................................................... IAGC............. IAGCinstantaneous automatic volume control ...................................................... IAVC............. IAVCinstantaneous overload ............................................................................ IOL ............... IOLinstantaneous relay ................................................................................. INSTRLY ....... instrlyinstitute ............................................................................................... INST ............. instinstruct ................................................................................................ INSTR ........... instrinstruction book..................................................................................... IB ................. IBinstruction card...................................................................................... IC ................. ICinstruction folder.................................................................................... IF.................. IFinstruction leaflet ................................................................................... IL.................. ILinstruction plate ..................................................................................... IP.................. IPinstruction pulse .................................................................................... IP.................. IPinstruction tag ....................................................................................... IT.................. ITinstrument ............................................................................................ INSTR ........... instrinstrument flight rules ............................................................................. IFR................ IFRinstrument landing approach ..................................................................... ILA ............... ILAInstrument Landing Approach System......................................................... ILAS ............. ILASInstrument Landing system....................................................................... ILS................ ILSinstrument panel .................................................................................... INSTPN ......... INSTPNinstrumentation...................................................................................... INSTM........... instminsufficient ........................................................................................... INSUF ........... insufinsulate................................................................................................ INSUL ........... insulinsulated-gate field-effect transistor ............................................................ IGFET............ IGFETinsulating transformer ............................................................................. IT.................. ITinsulation resistance................................................................................ IR ................. IRinsulation specification............................................................................ ISPEC............ ISPECinsulation test specification....................................................................... ITS................ ITSinsure .................................................................................................. INS ............... insintake .................................................................................................. INTK............. intkintegral ................................................................................................ INT ............... intintegrated circuit .................................................................................... IC ................. ICintegrated data processing ........................................................................ IDP ............... IPDintegrated injection logic.......................................................................... IIL................. IILintegrated passive-action detection and acquisition equipment .......................... IPADAE......... IPADAE



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integrated time and absolute error............................................................... ITAE..............ITAEintegrating ............................................................................................ INTEG ........... integintelligence ........................................................................................... INTEL............ intelintensity ............................................................................................... INTEN ........... intenintensive-care unit .................................................................................. ICU ...............ICUintercept............................................................................................... INTCP............ intcpinterceptor missile .................................................................................. IM .................IMinterceptor [aircraft] ................................................................................ F ...................Finterchangeable...................................................................................... INTCHG......... intchginterchangeable solid and screen panels ....................................................... IP ..................IPinterchanger .......................................................................................... INTCHGR....... intchgrintercommunication ................................................................................ INTERCOM ....intercomintercommunication drum......................................................................... ICDRUM ........ICDRUMIntercommunication System...................................................................... ICS................ICSintercommunication [short form]................................................................ ICM............... icminterconnection ...................................................................................... INTCON......... intconintercontinental ballistic missile ................................................................. ICBM.............ICBMintercooler ............................................................................................ INCLR ........... inclrintercylinder.......................................................................................... INTCYL ......... intcylinterface............................................................................................... INTFC............ intfcinterface control drawing.......................................................................... ICD ...............ICDinterference........................................................................................... INTRF............INTRFintergovernmental .................................................................................. INTERGOVT...INTERGOVTinterior................................................................................................. INTR ............. intrinterior communication............................................................................ IC..................ICinterior communication and fire control distribution........................................ ICFCD ...........ICFCDinterlock............................................................................................... INTLK ........... intlkintermediate .......................................................................................... INTMD .......... intmdintermediate distributing frame .................................................................. IDF................IDFintermediate frequency ............................................................................ IF ..................IFintermediate missile ................................................................................ IM .................IMintermediate power amplifier..................................................................... IPA................IPAintermediate pressure .............................................................................. IP ..................IPintermediate voltage................................................................................ IV..................IVintermediate-range ballistic missile ............................................................. IRBM.............IRBMintermittent ........................................................................................... INTMT........... intmtintermittent commercial and amateur service................................................. ICAS..............ICASintermittent duty..................................................................................... IDTY .............IDTYintermodulation distortion ........................................................................ IMD...............IMDinternal ................................................................................................ INTL.............. intlinternal combustion ................................................................................ IC..................ICinternal combustion engine ....................................................................... ICE................ICEinternal connection ................................................................................. INTCON......... intconinternal diameter .................................................................................... ID..................IDinternal pipe thread ................................................................................. IPT ................IPTinternational.......................................................................................... INTL.............. intlInternational Annealed Copper Standard ...................................................... IACS..............IACSInternational Critical Tables...................................................................... ICT................ICTinternational direct distance dialing............................................................. IDDD.............IDDDInternational Pipe Standard....................................................................... IPS ................IPSInternational Standard Thread [metric] ........................................................ IST ................ISTInternational System of Units .................................................................... SI ..................SIinteroffice memorandum .......................................................................... IOM...............IOM



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interphase transformer............................................................................. INTPHTR ....... INTPHTRinterphone ............................................................................................ INTPH ........... intphinterphone control station......................................................................... ICS................ ICSinterpolation ......................................................................................... INTRPL ......... intrplinterpole .............................................................................................. INTPO ........... intpointerpost............................................................................................... IP.................. ipinterpret ............................................................................................... INTPR ........... intprinterpupillary ........................................................................................ INTRPLRY..... intrplryinterrogate............................................................................................ INTRG........... intrginterrogator-responder............................................................................. IR ................. IRinterrogator-transponder .......................................................................... IT.................. ITinterrupt............................................................................................... INTRPT ......... intrptinterrupt control register .......................................................................... INCR............. INCRinterrupted continuous wave ..................................................................... ICW .............. ICWinterrupter [relay]................................................................................... INT ............... intintersect ............................................................................................... INTSCT ......... intsctintership............................................................................................... INTSHP ......... intshpinterstage ............................................................................................. INTSTG ......... intstginterval ................................................................................................ INTVL ........... intvlintervalometer ....................................................................................... INTVLM ........ intvlmintricate ............................................................................................... INTRC ........... intrcintrinsic (i)-type semiconductor material...................................................... I.................... Iintroduction .......................................................................................... INTRO........... introinvariant .............................................................................................. INVAR .......... invarinventory ............................................................................................. INVN............. invninventory schedule ................................................................................. IS.................. ISinverse ................................................................................................ INVS ............. invsinverse cosecant..................................................................................... ARCCSE ........ arccseinverse cosine ....................................................................................... ARCCOS........ arccosinverse cotangent ................................................................................... ARCCOT........ arccotinverse secant........................................................................................ ARCSEC ........ arcsecinverse sine .......................................................................................... ARCSIN......... arcsininverse tangent ...................................................................................... ARCTAN ....... arctaninverse time limit ................................................................................... ITL................ ITLinverse time relay................................................................................... ITR ............... ITRinvert .................................................................................................. INVT............. invtinverter................................................................................................ INV............... invinvolute ............................................................................................... INVLT ........... invltinward................................................................................................. INWD............ inwdion chamber.......................................................................................... IC ................. ICionsphere ............................................................................................. IONO............. ionoiron pipe .............................................................................................. IP.................. IPiron pipe size ........................................................................................ IPS ................ IPSiron pipe thread ..................................................................................... IPT................ IPTiron-body bronze-mounted ....................................................................... IBBM ............ IBBMiron-core reactor .................................................................................... ICR ............... ICRironing board ........................................................................................ IB ................. IBirregular............................................................................................... IRREG ........... irregisland .................................................................................................. IS.................. isisolate ................................................................................................. ISOL ............. isolisolated-gate field-effect transistor ............................................................. IGFET............ IGFETisolation............................................................................................... ISLN ............. islnisolation ward ....................................................................................... ISLNWD ........ islnwd



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isometric .............................................................................................. ISO................ isoisosceles............................................................................................... ISOS.............. isosissue.................................................................................................... ISS ................ issitem identification .................................................................................. II................... iiitem reduction studies.............................................................................. IRS................IRS

Jjacket .................................................................................................. JKT ............... jktjacket water .......................................................................................... JW.................JWjackscrew ............................................................................................. JKSCR ........... jkscrjamming............................................................................................... JAMG ............ jamgjanitor's closet........................................................................................ JC .................JCJanuary ................................................................................................ JAN ...............Janjapanned .............................................................................................. JAP................ japjet propelled .......................................................................................... JP..................JPjet-assisted takeoff .................................................................................. JATO .............JATOjettison................................................................................................. JTSN.............. jtsnjig template........................................................................................... JT..................JTjob order .............................................................................................. JO .................JOjoggle .................................................................................................. JOG ............... jogjoiner................................................................................................... J.................... jjoiner pilaster fume tight .......................................................................... JPFT ..............JPFTjoiner pilaster nontight............................................................................. JPNT..............JPNTjoint .................................................................................................... JT.................. jtJoint Army-Navy ................................................................................... JAN ...............JANJoint Army-Navy-Air Force ...................................................................... JANAF...........JANAFjoint bar ............................................................................................... JTB................JTBjoint compound...................................................................................... JC .................JCjoints ................................................................................................... NPSM ............npsmjoists and planks..................................................................................... JP..................JPjournal ................................................................................................. JNL ............... jnlJuly..................................................................................................... JUL ...............Juljunction................................................................................................ JCT................ jctjunction box.......................................................................................... JB .................JBjunction field-effect transistor.................................................................... JFET..............JFETJune .................................................................................................... JUN ...............Junjunior .................................................................................................. JR ................. jrjust not noticeable difference..................................................................... JNND.............JNNDjust noticeable difference.......................................................................... JND ...............JND

KKalamein.............................................................................................. KAL ..............kalKalamein door....................................................................................... KALD ............KALDKalamein door and frame ......................................................................... KDF ..............KDFkeene's cement plaster ............................................................................. KCP...............KCPCkeene's cement plaster ceiling.................................................................... KCPC ............KCPCkeeping................................................................................................ KPG ..............kpgKelvin ................................................................................................. K...................Kkerosene............................................................................................... KRSN ............krsnkey locker............................................................................................. KL.................klkey pulsing ........................................................................................... KPLS .............KPLSkeyboard .............................................................................................. KYBD............kybdkeypunch.............................................................................................. KP.................kp



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keyseat ................................................................................................ KST............... kstkeyway................................................................................................ KWY............. kwykick plate ............................................................................................. KPL............... KPLkick plate & drip .................................................................................... KPD .............. KPDkickoff [relay] ....................................................................................... KO ................ kokickpipe............................................................................................... KP ................ kpkiln-dried ............................................................................................. KD ................ kdkilovolt-ampere hour............................................................................... KVAH ........... KVAHkilovolt-ampere hour meter ...................................................................... KVAHM ........ KVAHMkilovolt-ampere meter ............................................................................. KVAM........... KVAMkilowatt-hour meter ................................................................................ KWHM .......... KWHMkinescope ............................................................................................. KINE............. kinekinetic energy ....................................................................................... KE ................ KEknee brace ............................................................................................ KB ................ KBknife switch .......................................................................................... KNSW ........... KNSWknife-blade ........................................................................................... KNBL............ KNBLknife-edge ............................................................................................ KNED............ KNEDknock down .......................................................................................... KD ................ KDknockout.............................................................................................. KO ................ koKoroseal .............................................................................................. KRAL............ kral

Llabel.................................................................................................... LBL............... lbllaboratory............................................................................................. LAB .............. lablabyrinth .............................................................................................. LBYR ............ lbyrlabyrinth pack ....................................................................................... LBYRPK........ LBYRPKlacquer ................................................................................................ LAQ .............. laqladder.................................................................................................. LAD .............. ladladder rung ........................................................................................... LR ................ LRlagging ................................................................................................ LAG .............. laglaminate............................................................................................... LAM ............. lamlampblack ............................................................................................ LMPBLK........ lmpblklampholder ........................................................................................... LPHLDR ........ lphldrlanding ................................................................................................ LDG .............. ldglanding gear.......................................................................................... LDGGR.......... ldggrLanding Observer Signal System ............................................................... LOSS............. LOSSlanding signal wand light ......................................................................... LSWLT.......... lswltlandmark.............................................................................................. LDMK ........... ldmklantern................................................................................................. LTRN ............ ltrnlanyard ................................................................................................ LNYD............ lnydlapping ................................................................................................ LPG............... lpglarge ................................................................................................... LGE .............. lgelarge artificial neuron network................................................................... LANNET........ LANNETlarge tug .............................................................................................. LT................. ltlarge-scale hybrid integration .................................................................... LSHI ............. LSHIlarge-scale integration ............................................................................. LSI................ LSIlaser detection and ranging ....................................................................... LADAR.......... LADARlashing ................................................................................................ LSHG ............ lshglast-in-first-out ...................................................................................... LIFO ............. LIFOlatch.................................................................................................... LCH .............. lchlatch checking switch .............................................................................. LCSW............ LCSWlateral.................................................................................................. LATL ............ latllatitude ................................................................................................ LAT .............. lat



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lattice .................................................................................................. LTC............... ltclaunch ................................................................................................. LANH ............ lanhlaunch and control center ......................................................................... LCC...............LCClauncher ............................................................................................... LCHR ............ lchrlauncher site.......................................................................................... LS .................LSlaundry ................................................................................................ LAU .............. laulaundry chute ........................................................................................ LC.................LClaundry tray .......................................................................................... LT .................LTlavatory................................................................................................ LAV .............. lavlawn faucet ........................................................................................... LF .................LFlayer.................................................................................................... LYR .............. lyrlayout .................................................................................................. LYT............... lytlead angle ............................................................................................. LA.................LAlead-coated metal ................................................................................... LCM..............LCMlead-covered ......................................................................................... LC.................LCleader .................................................................................................. LDR .............. ldrleading................................................................................................. LD................. ldleading edge.......................................................................................... LE .................LEleading edge radius ................................................................................. LER...............LERleakage ................................................................................................ LKG .............. lkgleakoff ................................................................................................. LOFF ............. loffleast common multiple............................................................................. LCM..............LCMleast material condition............................................................................ LMC..............LMCleather ................................................................................................. LTHR............. lthrleaves .................................................................................................. LVS............... lvsleft arithmetic element ............................................................................. LAE...............LAEleft bank............................................................................................... LBK .............. lbkleft hand............................................................................................... LH.................LHleft male............................................................................................... LM ................LMleft side................................................................................................ LS .................LSleft-hand drive ....................................................................................... LHDR ............LHDRleft-hand side ........................................................................................ LHS...............LHSleft-right indicator .................................................................................. LRI................LRIlength .................................................................................................. LG................. lglength between perpendiculars................................................................... LBP ...............LBPlength of chord ...................................................................................... LC.................LClength of curve....................................................................................... LCRV ............LCRVlength of lead [actual].............................................................................. LOL...............LOLlength overall ........................................................................................ LOA ..............LOAlength-to-diameter ratio ........................................................................... LGD ..............LGDlengthening........................................................................................... LNG .............. lnglens board............................................................................................. LNBD ............ lnbdlens speed............................................................................................. LNSP ............. lnspletter ................................................................................................... LTR............... ltrletter box.............................................................................................. LB.................LBletter press ............................................................................................ LTRPRS ......... ltrprslettering ............................................................................................... LTRPRS ......... ltrprslevel.................................................................................................... LVL............... lvllevel detector......................................................................................... LDET.............LDETlevel discriminator .................................................................................. LDISCR .........LDISCRlevelometer ........................................................................................... LEVMETR...... levmetrlever.................................................................................................... LVR .............. lvrlewisite ................................................................................................ L ................... l



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liaison [aircraft] ..................................................................................... L................... lliberty ................................................................................................. LBRT ............ lbrtlibrary ................................................................................................. LBRY ............ lbrylicense................................................................................................. LIC ............... liclife float............................................................................................... LF................. LFlife jacket ............................................................................................. LJ ................. LJlife preserver......................................................................................... LPSVR........... LPSVRlife-cycle survivability............................................................................. LCS............... LCSlifeboat ................................................................................................ LB ................ lblifesaving ............................................................................................. LSVG ............ lsvglift-up door ........................................................................................... LUD .............. LUDlifting .................................................................................................. LFT............... lftlifting eye............................................................................................. LE................. LElight .................................................................................................... LT................. ltlight amplification by stimulated emission of radiation.................................... LASER .......... laserlight case.............................................................................................. LC ................ LClight distribution box............................................................................... LDB .............. LDBlight lock.............................................................................................. LL................. LLlight switch........................................................................................... LTSW............ LTSWlight tank.............................................................................................. LTTK ............ LTTKlight trap .............................................................................................. LT................. LTlight-activated semiconductor controlled rectifier........................................... LASCR .......... LASCRlight-emitting diode ................................................................................ LED .............. LEDlight-gun pulse generator ......................................................................... LGG .............. LGGlight-intensity detector............................................................................. LTID ............. LTIDlight-optic microscope............................................................................. LOM ............. LOMlightening............................................................................................. LTG .............. ltglightening hole ...................................................................................... LTGH ............ LTGHlighter-than-air ...................................................................................... LTA .............. LTAlighting................................................................................................ LTG .............. ltglightning arrester.................................................................................... LA ................ LAlightning hole........................................................................................ LGTH ............ LGTHlightproof louver .................................................................................... LPL............... LPLlightproof shade..................................................................................... LPS ............... LPSlightproof vent....................................................................................... LPV............... LPVlightweight concrete ............................................................................... LWC ............. LWClightweight insulating concrete .................................................................. LWIC ............ LWIClignum vitae.......................................................................................... LGNMVTE..... LGNMVTElimber ................................................................................................. LIM............... limlimestone ............................................................................................. LS................. lslimit.................................................................................................... LIM............... limlimit switch .......................................................................................... LIMSW.......... LIMSWlimited................................................................................................. LTD .............. ltdlimited-space-charge accumulation [microwaves diodes] ................................. LSA............... LSAlimiter ................................................................................................. LMTR............ lmtrlimiting................................................................................................ LMTG............ lmtgline (comb form).................................................................................... L................... lline amplifier and super sync mixer ............................................................ LASSM.......... LASSMline drawing.......................................................................................... LD ................ LDline printer............................................................................................ LPTR............. LPTRline receiving amplifier............................................................................ LRA .............. LRAline replaceable unit................................................................................ LRU .............. lruline-carrying ......................................................................................... LC ................ LC



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line-drop compensator ............................................................................. LDC ..............LDCline-of-sight .......................................................................................... LOS...............LOSlineal ................................................................................................... LIN................ linlinear................................................................................................... LIN................ linlinear detonating card .............................................................................. LDC ..............LDClinear integrated circuit ............................................................................ LIC................LIClining................................................................................................... LNG .............. lnglinkage................................................................................................. LKGE ............ lkgelinoleum............................................................................................... LINOL ........... linollinoleum base ........................................................................................ LB.................LBlinoleum floor........................................................................................ LF .................LFlintel ................................................................................................... LNTL............. lntlliquid................................................................................................... LIQ................ liqliquid fuel............................................................................................. LIQFL............LIQFLliquid in glass ........................................................................................ LQGLS...........LQGLSliquid oxygen ........................................................................................ LOX ..............LOXliquid petroleum gas................................................................................ LPG...............LPGliquid rocket.......................................................................................... LR.................LRliquid-crystal display............................................................................... LCD ..............LCDliquid-rocket engine ................................................................................ LRE...............LREliquidometer.......................................................................................... LQMETR........ lqmetrliquor .................................................................................................. LQR .............. lqrlist of material ....................................................................................... LM ................LMlist of specifications and standards.............................................................. LSST .............LSSTlithograph............................................................................................. LITHO ........... litholitter .................................................................................................... LIT................ litlitter hook............................................................................................. LH.................LHlive load............................................................................................... LL .................LLlizard................................................................................................... LIZ................ lizload carrier ........................................................................................... LC.................LCload center ............................................................................................ LC.................LCload factor [tabular] ................................................................................ LF .................LFload list................................................................................................ LL .................LLload ratio.............................................................................................. LR.................LRload shifting resistor................................................................................ LSR ...............LSRload waterline........................................................................................ LWL..............LWLload, update, subset................................................................................. LUS...............LUSload-compensating [relay] ........................................................................ LC.................LCload-indicating relay ............................................................................... LIRLY ...........LIRLYload-limiting resistor ............................................................................... LLRES ...........LLRESload-ratio control.................................................................................... LRC...............LRCload-resistor [relay]................................................................................. LR.................LRloader .................................................................................................. LDR ..............LDRloading ................................................................................................ LDG .............. ldglocal apparent time ................................................................................. LAPT.............LAPTlocal apparent time ................................................................................. LCL............... lcllocal area network .................................................................................. LAN .............. lanlocal automatic message accounting............................................................ LAMA ...........LAMAlocal oscillator ....................................................................................... LO.................LOlocal sidereal time .................................................................................. LSDT.............LSDTlocal standard time.................................................................................. LST ...............LSTlocalizer ............................................................................................... LOC .............. loclocate .................................................................................................. LCT............... lct



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lock pillar............................................................................................. LPLR............. LPLRlock washer .......................................................................................... LKWASH....... LKWASHlock-on ................................................................................................ LO ................ LOlocked ................................................................................................. LKD .............. lkdlocked closed ........................................................................................ LKDC............ LKDClocked in device..................................................................................... LID ............... LIDlocked open .......................................................................................... LKDO............ LKDOlocked rotor .......................................................................................... LKROT.......... LKROTlocked-rotor amperes .............................................................................. LRA .............. LRAlocker.................................................................................................. LKR .............. lkrlocking ................................................................................................ LKG .............. lkglocknut ................................................................................................ LKNT ............ lkntlocknut pipe thread ................................................................................. NPSL............. NPSLlockscrew............................................................................................. LKSCR .......... lkscrlocksmith ............................................................................................. LSMITH......... lsmithlockup ................................................................................................. LKUP ............ lkuplockwire............................................................................................... LKWR ........... lkwrlocomotive ........................................................................................... LOCO............ locolocus of radius....................................................................................... LR ................ LRlocust .................................................................................................. LCT............... lctloft line................................................................................................ LL................. LLlogarithm ............................................................................................. LOG .............. loglogarithm [natural] ................................................................................. LN ................ lnlogarithmic amplifier .............................................................................. LOAMP ......... LOAMPlogic ................................................................................................... LGC .............. lgclogic unit.............................................................................................. LU ................ LUlong baseline radar ................................................................................. LOBAR.......... LOBARlong side .............................................................................................. LSD............... LSDlong taper............................................................................................. LTPR............. LTPRlong wheelbase...................................................................................... LWB ............. LWBlong-range navigation ............................................................................. LORAN.......... LORANlong-range radar input ............................................................................. LRI ............... LRIlongeron .............................................................................................. LONGN ......... LONGNlongitude.............................................................................................. LONG............ longlongitudinal .......................................................................................... LONG............ longlongitudinal expansion joint...................................................................... LEJ ............... LEJlongitudinal position of center of buoyancy .................................................. LCB .............. LCBlongitudinal position of center of flotation.................................................... LCF............... LCFlongitudinal position of center of gravity...................................................... LCG .............. LCGlongleaf yellow pine ............................................................................... LLYP............. LLYPlooking ................................................................................................ LKG .............. lkglookout ................................................................................................ LKT .............. lktloop-control [relay] ................................................................................ LPC............... LPClooper.................................................................................................. LPR............... lprloss of signal......................................................................................... LOS............... LOSlot fraction reliability definition ................................................................. LFRD ............ LFRDlot tolerance percent defective ................................................................... LTPD............. LTPDloudspeaker .......................................................................................... LS................. lslouver.................................................................................................. LVR .............. lvrlouver opening ...................................................................................... LVO .............. LVOlouvered door........................................................................................ LVD .............. LVDlow carbon ........................................................................................... LC ................ LClow coolant........................................................................................... LCOLNT........ LCOLNT



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low explosive ........................................................................................ LE .................LElow frequency........................................................................................ LF .................LFlow level .............................................................................................. LL .................LLlow pass ............................................................................................... LP .................LPlow point.............................................................................................. LP .................LPlow power output ................................................................................... LPO...............LPOlow pressure.......................................................................................... LP .................LPlow speed ............................................................................................. LSP ...............LSPlow steam............................................................................................. LSTM ............LSTMlow temperature ..................................................................................... LTEMPT ........LTEMPTlow tension ........................................................................................... LT .................LTlow torque ............................................................................................ LTQ...............LTQlow voltage ........................................................................................... LV.................LVlow-alloy steel ....................................................................................... LAS...............LASlow-altitude bombing .............................................................................. LAB ..............LABlow-frequency acquisition and ranging ........................................................ LOFAR ..........LOFARlow-frequency oscillator........................................................................... LFO...............LFOlow-frequency outer marker ...................................................................... LFOM ............LFOMlow-level logic....................................................................................... LLL ...............LLLlow-power acquisition radar...................................................................... LOPAR ..........LOPARlow-powered fan marker .......................................................................... LPFM ............LPFMlow-resolution infrared radiometer.............................................................. LRIRR ...........LRIRRlow-voltage protection............................................................................. LVP...............LVPlow-voltage release ................................................................................. LVRLSE.........LVRLSElow-voltage release effect ......................................................................... LVRE.............LVRElow-water line ....................................................................................... LWL..............LWLlower................................................................................................... LWR.............. lwrlower control limit .................................................................................. LCL...............LCLlower deck............................................................................................ LDK ..............LDKlower sideband ...................................................................................... LSB ...............LSBlowercase ............................................................................................. LC................. lclowest.................................................................................................. LWST ............ lwstlowest usable frequency ........................................................................... LUF...............LUFlowest usable high frequency .................................................................... LUHF.............LUHFlowpass filter......................................................................................... LPFL .............LPFLlox clean .............................................................................................. LC.................LClubricant............................................................................................... LUBT............. lubtlubricate............................................................................................... LUB .............. lublubricating oil ........................................................................................ LUBO ............ lubolubricating oil pump................................................................................ LOP...............LOPlubrication order..................................................................................... LO.................LOlumber ................................................................................................. LBR............... lbrlumen per watt....................................................................................... LPW ..............LPWluminous .............................................................................................. LUM.............. lumlunar excursion module............................................................................ LEM ..............LEMlunar orbit-rendezvous............................................................................. LOR ..............LORlunette ................................................................................................. LUN .............. lun

MMach number ........................................................................................ MACH ...........MACHmachine ............................................................................................... MACH ...........machmachine gun.......................................................................................... MG................MGmachine rifle ......................................................................................... MR................MR



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machine screw....................................................................................... MSCR............ MSCRmachine steel ........................................................................................ MST .............. MSTmachined surface ................................................................................... MASU ........... MASUmachinery ............................................................................................ MCHRY......... mchrymachinist ............................................................................................. MCHST.......... mchstmagazine ............................................................................................. MAG ............. magmagazine flooding and sprinkling .............................................................. MFS .............. mfsmagnaflux ............................................................................................ M.................. mmagnesium........................................................................................... MAG ............. magmagnesium-thorium................................................................................ MAGTHOR .... magthormagnet ................................................................................................ MAG ............. magmagnetic .............................................................................................. MAG ............. magmagnetic amplifier ................................................................................. MAGAMP ...... MAGAMPmagnetic armature.................................................................................. MG ............... mgmagnetic core memory ............................................................................ MCM............. MCMmagnetic ink character recognition ............................................................. MICR ............ MICRmagnetic mine sweeping.......................................................................... MMS ............. MMSmagnetic modulator ................................................................................ MAGMOD...... MAGMODmagnetic particle inspection...................................................................... MPI ............... MPImagnetic tape........................................................................................ MT................ MTmagneto............................................................................................... MGN ............. mgnmagnetohydrodynamics ........................................................................... MHD ............. mhdmagnetometer ....................................................................................... MGTMTR....... mgtmtrmagnetomotive force .............................................................................. MMF ............. MMFmagnetostriction .................................................................................... MS ................ msmagnetron ............................................................................................ MAGN........... magnmagnify ............................................................................................... MGF.............. mgfmagnitude ............................................................................................ MAGTD......... magtdmahogany ............................................................................................ MAH ............. mahmail chute ............................................................................................ MCH ............. MCHmail tray .............................................................................................. MT................ MTmailbox ............................................................................................... MB................ mbmain ballast tank.................................................................................... MBT.............. MBTmain bang suppressor.............................................................................. MBS.............. MBSmain battery [guns]................................................................................. MB................ MBmain battle tank ..................................................................................... MBT.............. MBTmain control tank ................................................................................... MCT.............. MCTmain coolant ......................................................................................... MC................ MCmain distributing frame ........................................................................... MDF.............. MDFmain feed ............................................................................................. MF ................ MFmain frame ........................................................................................... MNFRM......... MNFRMmain landing gear................................................................................... MLG ............. MLGmaintenance.......................................................................................... MAINT .......... maintmaintenance and repair............................................................................ MR................ MRmaintenance and supply........................................................................... MS ................ MSmaintenance engineering analysis record ..................................................... MEAR ........... MEARmaintenance ground equipment ................................................................. MGE ............. MGEmaintenance of close contact..................................................................... MCC ............. MCCmaintenance of true bearing...................................................................... MTB.............. MTBmaintenance parts kit .............................................................................. MPK.............. MPKmaintenance parts list.............................................................................. MPL .............. MPLmaintenance support equipment................................................................. MSE .............. MSEmajor .................................................................................................. MAJ .............. maj



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makeup................................................................................................ MKUP............mkupmakeup feed.......................................................................................... MUFD............MUFDmale and female..................................................................................... MF ................MFmale flared ........................................................................................... MFLRD..........MFLRDmale pipe thread..................................................................................... MPT ..............MPTmale threaded ........................................................................................ MTHRD .........MTHRDmalfunction........................................................................................... MALF ............malfmalleable.............................................................................................. MAL..............malmalleable iron........................................................................................ MI .................MIman overboard and breakdown light ........................................................... MOBLT..........MOBLTmanagement.......................................................................................... MGT..............mgtmanager ............................................................................................... MGR..............mgrmanaging ............................................................................................. MNG .............mngmandrel................................................................................................ MDRL............mdrlmaneuvering ......................................................................................... MANUV.........manuvmanhole ............................................................................................... MH................mhmanhole cover ....................................................................................... MC................MCmanifold .............................................................................................. MANF............manfmanila [rope]......................................................................................... M ..................mmanual................................................................................................. MNL..............mnlmanual change order ............................................................................... MCO..............MCOmanual change request............................................................................. MCR..............MCRmanual data input function ....................................................................... MDIF.............MDIFmanual gain control ................................................................................ MGC..............MGCmanual overload..................................................................................... MANOVLD ....MANOVLDmanual volume control ............................................................................ MVC..............MVCmanually operated .................................................................................. MNLOPR........MNLOPRmanufacture .......................................................................................... MFR ..............mfrmanufactured ........................................................................................ MFD..............mfdmanufacturing ....................................................................................... MFG..............mfgmanufacturing information ....................................................................... MFGINFO ......MFGINFOmanufacturing instruction......................................................................... MI .................MImanuscript............................................................................................ MS ................msmarble ................................................................................................. MR................mrmarble base........................................................................................... MRB..............MRBmarble floor .......................................................................................... MRF ..............MRFmarble threshold .................................................................................... MRT..............MRTMarch.................................................................................................. MAR..............Marmargin ................................................................................................. MARG ...........margmarginal [relay] ..................................................................................... MGL..............mglmarine ................................................................................................. MAR..............Marmarine-finish slate .................................................................................. MFS ..............MFSmark sensing ......................................................................................... MS ................MSmarked ................................................................................................ MKD .............mkdmarker ................................................................................................. MKR..............mkrmarkings .............................................................................................. MKGS............mkgsmasking ............................................................................................... MASK............maskmason operated...................................................................................... MO................MOmasonite hydropress die........................................................................... MHPD............MHPDmasonry ............................................................................................... MSNRY .........msnrymast hull loop........................................................................................ MHL..............MHLmaster ................................................................................................. MA................mamaster change record............................................................................... MCR..............MCR



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master cross-reference list ........................................................................ MCRL ........... MCRLmaster data record .................................................................................. MDR ............. MDRmaster layout duplicate............................................................................ MLD ............. MLDmaster layout original.............................................................................. MLO ............. MLOmaster lines layout ................................................................................. MLL.............. MLLmaster makeup and display....................................................................... MMD............. MMDmaster oscillator .................................................................................... MO ............... MOmaster oscillator power amplifier ............................................................... MOPA ........... MOPAmaster sensitized material print.................................................................. MSMP ........... MSMPmaster switch ........................................................................................ MSW............. MSWmaster synchronizer................................................................................ MSYNC ......... MSYNCmasthead.............................................................................................. MHD ............. mhdmasthead light ....................................................................................... MHDLT ......... mhdltmastic ................................................................................................. MSTC............ mstcmastic floor .......................................................................................... MF ................ MFmastic joint........................................................................................... MJ ................ MJmatched............................................................................................... MTCHD ......... mtchdmaterial ............................................................................................... MATL............ matlmaterial list .......................................................................................... ML................ MLmaterial test specification......................................................................... MTS .............. MTSmathematical ........................................................................................ MATH ........... mathmathematics.......................................................................................... MATH ........... mathmatrix ................................................................................................. MAT ............. matmatrix output amplifier............................................................................ MOA ............. MOAmatt-finish structural facing units............................................................... MFSFU .......... MFSFUmattress ............................................................................................... MTRS............ mtrsmaximum............................................................................................. MAX ............. maxmaximum available power gain ................................................................. MAPG ........... MAPGmaximum capacity ................................................................................. MAXCAP....... maxcapmaximum design meter ........................................................................... MDM............. MDMmaximum flight ..................................................................................... MAXFLT ....... MAXFLTmaximum material condition .................................................................... MMC............. MMCmaximum permissible exposure................................................................. MPE .............. MPEmaximum torque.................................................................................... MT................ MTmaximum usable frequency ...................................................................... MUF.............. MUFmaximum working pressure...................................................................... MWP............. MWPmaximum working voltage ....................................................................... MWV ............ MWVmean aerodynamic chord ......................................................................... MAC ............. MACmean effective pressure ........................................................................... MEP .............. MEPmean flight hours between failure .............................................................. MFHBF.......... MFHBFmean high tide....................................................................................... MHT ............. MHTmean high water .................................................................................... MHW ............ MHWmean higher high water ........................................................................... MHHW .......... MHHWmean low tide........................................................................................ MLT.............. MLTmean low water ..................................................................................... MLW............. MLWmean lower low water ............................................................................. MLLW........... MLLWmean sea level....................................................................................... MSL .............. MSLmean tide ............................................................................................. MT................ MTmean time ............................................................................................ MT................ MTmean time between failures ...................................................................... MTBF............ MTBFmean time to failure................................................................................ MTTF ............ MTTFmean time to first failure.......................................................................... MTTFF .......... MTTFFmean time to repair................................................................................. MTTR............ MTTR



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mean up time......................................................................................... MUT..............MUTmean variation....................................................................................... MV................MVmean width ratio .................................................................................... MWR.............MWRmeasure ............................................................................................... MEAS ............measmechanical ........................................................................................... MECH............mechmechanical buffer register ........................................................................ MBR..............MBRmechanical time fuze............................................................................... MTF ..............MTFmechanical time, superquick ..................................................................... MTSQ ............MTSQmechanically cooled................................................................................ MCHCL .........MCHCLmechanically refrigerated ......................................................................... MCHRF..........MCHRFmechanism ........................................................................................... MECH............mechmechanize ............................................................................................ MECZ ............meczmedian................................................................................................. MDN .............mdnmedical ................................................................................................ MED..............medmedicine cabinet .................................................................................... MC................MCmedium................................................................................................ MDM.............mdmmedium frequency.................................................................................. MF ................MFmedium high frequency ........................................................................... MHF..............MHFmedium pressure .................................................................................... MP ................MPmedium-range ballistic missile .................................................................. MRBM...........MRBMmegabyte.............................................................................................. MEG..............megmelamine ............................................................................................. MEL ..............melmelting point......................................................................................... MP ................MPmember................................................................................................ MBR..............mbrmembrane ............................................................................................ MEMB ...........membmembrane waterproofing ......................................................................... MWP .............MWPmemorandum ........................................................................................ MEMO...........memomemory ............................................................................................... MEM .............memmemory allocation and protection unit......................................................... MAPU............MAPUmemory point ........................................................................................ MEMPT .........MEMPTmemory test computer ............................................................................. MTC..............MTCmerchandise.......................................................................................... MDSE ............mdsemerchantable......................................................................................... MERCH .........merchmercurial.............................................................................................. MRCL............mrclmercury arc........................................................................................... MA................MAmeridian............................................................................................... MER..............mermeshing ............................................................................................... MSHG............mshgmessage ............................................................................................... MSG..............msgmessage generator .................................................................................. MSGG............MSGGmessenger ............................................................................................ MESS ............messmetacenter ............................................................................................ M ..................mmetacentric height .................................................................................. GM................gmmetal ................................................................................................... MET ..............metmetal anchor ......................................................................................... MA................MAmetal anchor slots................................................................................... MAS..............masmetal awning-type window....................................................................... MATW...........MATWmetal base ............................................................................................ METB ............METBmetal casement window ........................................................................... MCW.............MCWmetal casting pattern ............................................................................... MCP ..............MCPmetal corner bead ................................................................................... MCB..............MCBmetal curb ............................................................................................ METC ............METCmetal door ............................................................................................ METD............METDmetal flashing........................................................................................ METF ............METF



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metal gravel stop.................................................................................... MGS.............. MGSmetal grille ........................................................................................... METG............ METGmetal jalousie........................................................................................ METJ............. METJmetal lath and plaster .............................................................................. MLP .............. MLPmetal mold ........................................................................................... METM ........... METMmetal mount.......................................................................................... MMT............. MMTmetal partition ....................................................................................... METP ............ METPmetal portion......................................................................................... METP ............ METPmetal rolling door................................................................................... MRD ............. MRDmetal roof ............................................................................................ METR............ METRmetal slitting ......................................................................................... MLS .............. MLSmetal splash pan .................................................................................... MSP .............. MSPmetal strip ............................................................................................ METS ............ METSmetal threshold...................................................................................... MT................ MTmetal thru-wall flashing........................................................................... MTWF ........... MTWFmetal-aluminum-oxidesilicon silicon .......................................................... MAOS ........... MAOSmetal-covered door................................................................................. MCD ............. MCDmetal-dielectric-metal [filter] .................................................................... MDM............. MDMmetal-interface amplifier.......................................................................... MIA .............. MIAmetal-nitride-oxide silicon........................................................................ MNOS ........... MNOSmetal-oxide semiconductor....................................................................... MOS.............. MOSmetal-oxide-semiconductor field effects transistor.......................................... MOSFET........ MOSFETmetal-oxide-semiconductor transistor.......................................................... MOST............ MOSTmetal-thick-oxide silicon.......................................................................... MTOS............ MTOSmetalclad switchgear............................................................................... MCSWGR ...... mcswgrmetallic ............................................................................................... MTLC............ mtlcmetallize .............................................................................................. MTLZ............ mtlzmetallurgical......................................................................................... MET.............. metmeteorological ...................................................................................... METRL.......... metrlmeter (instr, comb form) .......................................................................... M.................. mmeter [instrument].................................................................................. MTR.............. mtrmeter-kilogram-second............................................................................ MKS.............. MKSmetering .............................................................................................. MTR.............. mtrmethod ................................................................................................ MTHD ........... mthdmethyl-violet paper ................................................................................ MVP.............. MVPmezzanine ............................................................................................ MEZZ............ mezzmicroammeter ....................................................................................... MCAM .......... mcammicrocircuit .......................................................................................... MCKT ........... mcktmicrocomputer ...................................................................................... MCMPTR....... mcmptrmicrocurrent ......................................................................................... MCKT ........... mcktmicroelectronic device ............................................................................ MED ............. MEDmicroelectronics .................................................................................... MELEC.......... melecmicroelement ........................................................................................ MELEM ......... melemmicrofilm............................................................................................. MF ................ mfmicrofunctional circuit ............................................................................ MFC.............. mfcmicrometer ........................................................................................... MIC............... micmicrominiature ...................................................................................... MMIN............ mminmicromodule......................................................................................... MMOD .......... mmodmicrophone .......................................................................................... MIC............... micmicrophone element ............................................................................... MICELEM...... MICELEMmicroprocessor ...................................................................................... MIPRCS......... miprcsmicroscope ........................................................................................... MICR ............ micrmicrowave amplification by stimulated emission of radiation ........................... MASER.......... MASER



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microwave early warning ......................................................................... MEW .............MEWmiddle ................................................................................................. MDL..............mdlmiddle landing....................................................................................... MLD..............MLDmidget ................................................................................................. MDGT ...........mdgtmildew-resistant thread............................................................................ MRT..............MRTmile .................................................................................................... MI .................mimile per gallon....................................................................................... MPG..............MPGmile per hour......................................................................................... MPH..............MPHmilitary................................................................................................ MIL ...............milMilitary Affiliated Radio System ............................................................... MARS............MARSmilitary characteristics............................................................................. MC................MCmilitary characteristics equipment .............................................................. MCE..............MCEmilitary characteristics motor vehicles ......................................................... MCM .............mcmmilitary standard [book]........................................................................... MIL-STD........MIL-STDmilitary standard [sheet]........................................................................... MS ................MSmilliammeter......................................................................................... MAM.............mammine hauling bogie ................................................................................. MHB..............MHBmineral ................................................................................................ MNRL............mnrlmineral-surface roof................................................................................ MSR ..............MSRminesweeping light................................................................................. MSLT ............msltminiature.............................................................................................. MINTR...........mintrminicomputer ........................................................................................ MNCMPTR.....mncmptrminimum.............................................................................................. MIN...............minminimum discernible signal ...................................................................... MDS..............MDSminor .................................................................................................. MIN...............minmirror.................................................................................................. MIR...............mirmiscellaneous........................................................................................ MISC .............miscmiscellaneous simulation generation ........................................................... MSG..............MSGmissile ................................................................................................. MSL ..............mslmissile boat tail...................................................................................... MSLBT ..........mslbtmissile impact predictor ........................................................................... MIP ...............MIPmissile precision instrumentation radar ........................................................ MPIR .............MPIRmission and traffic control ........................................................................ MTC..............MTCmiter ................................................................................................... MIT ...............mitmiter end.............................................................................................. ME ................MEmixed flow ........................................................................................... MXFL ............MXFLmixing ................................................................................................. MXG .............mxgmixture ................................................................................................ MXT..............mxtmobile ................................................................................................. MBL..............mblmobile engine test stand........................................................................... METS ............METSmobile unit support base .......................................................................... MUSB............MUSBmockup template.................................................................................... MUT..............MUTmode transducer..................................................................................... MXDCR .........MXDCRmodel .................................................................................................. MOD .............modmodel block .......................................................................................... MB................MBmodel [military nomenclature]................................................................... M ..................mmodification.......................................................................................... MOD .............modmodification work order........................................................................... MWO.............MWOmodify................................................................................................. MOD .............modmodulated continuous wave ...................................................................... MCW.............MCWmodulator............................................................................................. MOD .............modmodulator-demodulator............................................................................ MODEM.........MODEMmodule ................................................................................................ MDL..............mdl



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modulus............................................................................................... MOD ............. modmogul.................................................................................................. MGL ............. mglmoisture............................................................................................... MSTRE.......... mstremold line.............................................................................................. ML................ MLmolded ................................................................................................ MLD ............. mldmolding ............................................................................................... MLDG ........... mldgmolecular electronics .............................................................................. MOLELEX ..... MOLELEXmolecular weight ................................................................................... MOLWT ........ MOLWTmolecule .............................................................................................. MOL ............. molmomentary ........................................................................................... MOM............. mommomentary contact ................................................................................. MC................ MCmonitor................................................................................................ MON ............. monmonograph ........................................................................................... MONOG ........ monogmonolithic............................................................................................ ML................ mlmonolithic integrated circuit ..................................................................... MIC............... MICmonophonic.......................................................................................... MONO........... monomonopulse radar .................................................................................... MPR.............. MPRmonostable multivibrator ......................................................................... MNSTBMV .... MNSTBMVmonth.................................................................................................. MO ............... momonument ............................................................................................ MON ............. monmooring............................................................................................... MRG ............. mrgmop rack.............................................................................................. MOPR ........... MOPRmorse taper........................................................................................... MORT ........... MORTmortar motor carrier................................................................................ MMC............. MMCmosaic................................................................................................. MOS.............. mosmost probable number............................................................................. MPN.............. MPNmost significant bit ................................................................................. MSB.............. MSBmostly ................................................................................................. MSLY............ mslymotherboard ......................................................................................... MTHBD ......... mthbdmotion................................................................................................. MTN ............. mtnmotion picture control panel ..................................................................... MPC.............. MPCmotion picture phonographic unit............................................................... MPPH............ MPPHmotion picture projector........................................................................... MPP .............. MPPmotor .................................................................................................. MOT ............. motmotor belt drive ..................................................................................... MBD ............. MBDmotor can............................................................................................. MOCAN......... MOCANmotor chain .......................................................................................... MC................ MCmotor circuit switch................................................................................ MCSW........... MCSWmotor direct .......................................................................................... MD ............... MDmotor direct-connected............................................................................ MDC ............. MDCmotor field ........................................................................................... MF ................ MFmotor generator ..................................................................................... MG ............... MGmotor operated ...................................................................................... MO ............... MOmotor transport ...................................................................................... MT................ MTmotor v-belt.......................................................................................... MVB ............. MVBmotor whaleboat .................................................................................... MWB............. MWBmotor-driven......................................................................................... MTRDN ......... MTRDNmotorboat............................................................................................. MB................ mbmotorcycle ........................................................................................... MTRCL.......... mtrclmotorized............................................................................................. MTZ.............. mtzmount.................................................................................................. MT................ mtmounted............................................................................................... MTD ............. mtdmounting ............................................................................................. MTG ............. mtg



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mounting center ..................................................................................... MTGC............MTGCmovable ............................................................................................... MVBL............mvblmovement ............................................................................................ MVT..............mvtmoving ................................................................................................ MVG .............mvgmoving-target indicator............................................................................ MTI ...............MTImuffler ................................................................................................ MUF..............mufmuller.................................................................................................. MULR............mulrmultiaperture logic element....................................................................... MALE............MALEmultiaperture reluctance switch.................................................................. MARS............MARSmultichip.............................................................................................. MC................mcmultifrequency pulsing ............................................................................ MFP ..............MFPmultigage ............................................................................................. MG................mgmultilith ............................................................................................... MULTH .........multhmultimeter ............................................................................................ MULTR..........multrmultiplane ............................................................................................ MLTPL ..........mltplmultiple ............................................................................................... MULT............multmultiple contact ..................................................................................... MC................MCmultiple gun motor carriage ...................................................................... MGMC...........MGMCmultiple unit.......................................................................................... MU................MUmultiplex.............................................................................................. MUX .............muxmultiplication ........................................................................................ MULT............multmultiplier ............................................................................................. MULTR..........multrmultipole.............................................................................................. MP ................mpmultispeed ............................................................................................ MLTSP...........mltspmultivibrator ......................................................................................... MV................mvmunitions ............................................................................................. MUN .............munmusic wire............................................................................................ MUW.............muwMusic Wire Gage ................................................................................... MWG.............MWGmutilated .............................................................................................. MUT..............mutmuzzle................................................................................................. MZL ..............mzlmuzzle velocity...................................................................................... MV................MV

Nnacelle ................................................................................................. NAC ..............nacnamely................................................................................................. VIZ................viznameplate............................................................................................. NPL...............nplnarrow................................................................................................. NAR ..............narnarrow band.......................................................................................... NB ................NBnarrow gage .......................................................................................... NG ................NGnational................................................................................................ NATL ............natlNational coarse [thread] ........................................................................... NC ................NCNational Electrical Code .......................................................................... NEC ..............NECNational Electrical Code Standards............................................................. NECS.............NECSNational Electrical Safety Code ................................................................. NESC.............NESCNational extra fine [thread] ....................................................................... NEF...............NEFNational fine [thread] .............................................................................. NF.................NFNational form [thread] ............................................................................. N...................NNational Formulary................................................................................. NF.................NFNational gas outlet [thread]....................................................................... NGO..............NGONational pipe thread................................................................................ NP.................NPNational special [thread] .......................................................................... NS.................NSnational stock number ............................................................................. NSN ..............nsnNational taper pipe [thread] ...................................................................... NPT...............NPT



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National Wire Gage................................................................................ NWG............. NWGnatural................................................................................................. NAT .............. natnatural black slate .................................................................................. NBS .............. NBSnatural logarithm.................................................................................... LN ................ LNnautical................................................................................................ NAUT............ nautnautical mile ......................................................................................... NMI .............. NMInaval................................................................................................... NAV.............. navnaval bronze ......................................................................................... NAVBRZ ....... NAVBRZnaval electronic warfare simulator.............................................................. NEWS............ NEWSnaval oceanographic meteorological automatic device .................................... NOMAD ........ NOMADnavigate ............................................................................................... NAV.............. navnavigation countermeasures and deception ................................................... NAVCMD ...... NAVCMDnavigational aid ..................................................................................... NAVAID........ NAVAIDnavigational aid inoperative for parts .......................................................... NAIOP........... NAIOPNavy Primary Standards .......................................................................... NPS............... NPSNavy Secondary Standards ....................................................................... NSS............... NSSnavy standard flange ............................................................................... NFL............... NFLnavy type ............................................................................................. NT ................ NTnear face .............................................................................................. NF ................ NFnear side .............................................................................................. NS ................ NSnecessary ............................................................................................. NEC .............. necneedle ................................................................................................. NDL .............. ndlnegative............................................................................................... NEG .............. negnegative print ........................................................................................ NEGPR .......... NEGPRnegative temperature coefficient ................................................................ NTC .............. NTCnegative torque signal ............................................................................. NTS............... NTSnegative-positive-innegative negative ......................................................... NPIN ............. NPINnegative-positive-negative [transistor]......................................................... NPN .............. NPNnegative-positive-nepositive positive .......................................................... NPNP ............ NPNPneon indicating light ............................................................................... NEIL ............. NEILneoprene .............................................................................................. NPRN ............ nprnnet weight ............................................................................................ NTWT ........... ntwtnet-laying light ...................................................................................... NLLT ............ NLLTnetwork ............................................................................................... NTWK ........... ntwkneutral ................................................................................................. NEUT ............ neutneutralizing .......................................................................................... NEUT ............ neutneutron ................................................................................................ NTN .............. ntnnext assembly ....................................................................................... NA ................ nanext higher assembly .............................................................................. NHA.............. NHAnickel .................................................................................................. NKL .............. nklnickel copper ........................................................................................ NICOP ........... NICOPnickel copper alloy ................................................................................. NCA.............. NCAnickel steel ........................................................................................... NS ................ NSnickel-plated ......................................................................................... NP ................ NPnickel-silver.......................................................................................... NISIL ............ nisilnight message ....................................................................................... NTM ............. NTMnight ration locker .................................................................................. NRL .............. NRLnight vision goggles................................................................................ NVG.............. NVGnight vision imaging system ..................................................................... NVIS ............. NVISnipple.................................................................................................. NIP ............... nipnitride steel........................................................................................... NITSTL.......... NITSTLnitrostarch ............................................................................................ NITROS ......... nitrosno bias [relay] ....................................................................................... NB ................ NB



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no change ............................................................................................. NC ................NCno coil ................................................................................................. NC ................NCno connection ........................................................................................ NC ................NCno control circuit contacts......................................................................... NOCCC..........NOCCCno drawing ........................................................................................... ND ................NDno good................................................................................................ NG ................NGno load ................................................................................................ NLD ..............nldno voltage release................................................................................... NVR ..............NVRnoise equivalent temperature ..................................................................... NET...............NETnoise factor ........................................................................................... NF.................NFnoise figure........................................................................................... NF.................NFnoise frequency...................................................................................... NF.................NFnoise generator ...................................................................................... NGEN ............NGENnoise meter ........................................................................................... NM................NMnolead ................................................................................................. NL.................nlnomenclature......................................................................................... NOMEN .........nomennominal................................................................................................ NOM .............nomnon-return-to-zero .................................................................................. NRZ ..............NRZnoncombustible...................................................................................... NCOMBL .......ncomblnoncorrosive metal ................................................................................. NCM..............NCMnoncoupled ........................................................................................... NCPLD ..........ncpldnondestructive evaluation ......................................................................... NDE ..............NDEnondestructive inspection ......................................................................... NDI ...............NDInondestructive readout............................................................................. NDRO............NDROnondestructive testing.............................................................................. NDT ..............NDTnonelectric............................................................................................ NELEC...........nelecnonenclosure ......................................................................................... NENCL ..........nenclnonflammable ....................................................................................... NFLMB..........nflmbnonfused .............................................................................................. NFSD.............nfsdnonhygroscopic...................................................................................... NH ................nhnonlinear .............................................................................................. NLNR ............nlnrnonmagnetic ......................................................................................... NMAG ...........nmagnonmetallic ........................................................................................... NM................nmnonoscillating........................................................................................ NOSC ............noscnonpetroleum ........................................................................................ NPET.............npetnonprocurable ....................................................................................... NP.................npnonpropelled ......................................................................................... NP.................npnonreactive [relay].................................................................................. NR ................nrnonreinforced-concrete pipe...................................................................... NRCP ............NRCPnonreplenishable demand ......................................................................... NRD ..............NRDnonreturn.............................................................................................. NRETN ..........nretnnonreversible......................................................................................... NRVSBL ........nrvsblnonself................................................................................................. NSLF .............nslfnonslip tread ......................................................................................... NST...............NSTnonstandard .......................................................................................... NONSTD........nonstdnonsynchronous ..................................................................................... NONSYN........nonsynnontight ............................................................................................... NT.................ntnonwatertight ........................................................................................ NWT..............nwtnormal ................................................................................................. NORM ...........normnormal charge........................................................................................ NLCHG..........NLCHGnormal circular pitch ............................................................................... NCP...............NCPnormal diametral pitch............................................................................. NDP ..............NDPnormal fuel oil tank................................................................................. NFT...............NFT



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normal lube oil tank................................................................................ NLT .............. NLTnormal overload..................................................................................... NOL .............. NOLnormal pressure angle ............................................................................. NPA .............. NPAnormal temperature and pressure................................................................ NTP............... NTPnormalize ............................................................................................. NORM ........... normnormally closed ..................................................................................... NC ................ NCnormally open ....................................................................................... NO ................ NOnorth ................................................................................................... N .................. Nnose fuse.............................................................................................. NF ................ NFnose landing gear ................................................................................... NLG .............. NLGnot applicable........................................................................................ NA ................ NAnot available ......................................................................................... NA ................ NAnot in contract ....................................................................................... NIC ............... NICnot to scale ........................................................................................... NTS............... NTSnotched................................................................................................ NCH.............. NCHnotice of revision ................................................................................... NOR.............. NORnovelty [insul] ....................................................................................... N .................. NNovember ............................................................................................ NOV.............. Novnozzle ................................................................................................. NOZ .............. noznozzle control unit.................................................................................. NCU.............. NCUnuclear ................................................................................................ NUC.............. nucnuclear magnetron.................................................................................. NM ............... NMnuclear reactor....................................................................................... NR ................ NRnumber ................................................................................................ NO ................ nonumeral ............................................................................................... NUM ............. numnumerical ............................................................................................. NUM ............. numnumerical control ................................................................................... NC ................ NCnut plate............................................................................................... NTPL............. ntplnylon .................................................................................................. NYL .............. nyl

Oobject .................................................................................................. OBJ ............... objobjective .............................................................................................. OBJV............. objvoblique ................................................................................................ OBL .............. oblobscure................................................................................................ OB ................ obobscure glass......................................................................................... OGL .............. OGLobscure wire glass .................................................................................. OWGL ........... OWGLobservable critical item............................................................................ OCI ............... OCIobservable critical processes ..................................................................... OCP .............. OCPobservation........................................................................................... OBSV ............ obsvobservation window................................................................................ OBW ............. OBWobserve................................................................................................ OBS .............. obsobsolete ............................................................................................... OBS .............. obsobstruction ........................................................................................... OBSTN .......... obstnobverse................................................................................................ OBV.............. obvoccupy ................................................................................................ OCC .............. occoctagon................................................................................................ OCT .............. octoctahedral ............................................................................................ OCTAHDR ..... octahdroctal print punch .................................................................................... OPP............... OPPoctane ................................................................................................. OCT .............. octOctober ............................................................................................... OCT .............. Octoctuple ................................................................................................ OCT .............. octodometer.............................................................................................. ODOM........... odom



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of true position ...................................................................................... OTP...............OTPoffensive [ammunition]............................................................................ OFFEN...........offenoffice................................................................................................... OFC...............ofcofficer ................................................................................................. OFCR ............ofcrofficial................................................................................................. OFCL.............ofcloffset................................................................................................... OFS ...............ofsoffset printing press ................................................................................ OPPR.............OPPRohmmeter ............................................................................................. OHM .............ohmoil burner ............................................................................................. OBNR ............obnroil catcher............................................................................................. OCHR ............OCHRoil circuit breaker ................................................................................... OCB ..............OCBoil circuit recloser................................................................................... OCR ..............OCRoil cleaner............................................................................................. OCLNR ..........oclnroil control............................................................................................. OCONT..........OCONToil cooler.............................................................................................. OCLR ............OCLRoil differential........................................................................................ ODIFF............ODIFFoil dipstick............................................................................................ ODPSK ..........ODPSKoil filter................................................................................................ OFL...............ofloil level................................................................................................ OLVL ............OLVLoil nozzle ............................................................................................. ONOZ ............ONOZoil pan ................................................................................................. OPN ..............OPNoil plug ................................................................................................ OPLG.............OPLGoil pressure ........................................................................................... OPRS.............OPRSoil pump............................................................................................... OP.................OPoil ring................................................................................................. OR ................ORoil screen.............................................................................................. OSCRN ..........OSCRNoil seal ................................................................................................. OSL...............osloil suction pump .................................................................................... OSP ...............OSPoil switch ............................................................................................. OS.................OSoil tank ................................................................................................ OTK ..............OTKoil-cooled ............................................................................................. OCLD ............OCLDoil-immersed ......................................................................................... OI..................OIoil-immersed water-cooled ....................................................................... OIWC ............OIWCoil-insulated .......................................................................................... OI..................OIoil-insulated fan-cooled ........................................................................... OIFC..............OIFCoil-insulated self-cooled ........................................................................... OISC..............OISCoilproof................................................................................................ OP.................Opoiltight................................................................................................. OT.................otolive drab ............................................................................................. OD ................ODon center .............................................................................................. OC ................OCon-vehicle equipment .............................................................................. OVE ..............OVEone-pole............................................................................................... SP .................SPone-shot ............................................................................................... OS.................OSone-shot multivibrator ............................................................................. OSMV............osmvone-stage.............................................................................................. OSTG (1STG)..ostg (1stg)one-way ............................................................................................... OW (1/W) .......ow (1/w)one-wire............................................................................................... OW (1W) ........ow (1w)opalescent indicating light ........................................................................ OPIL..............OPILopaque................................................................................................. OPA ..............opaopen dripproof....................................................................................... ODP ..............ODPopen dripproof protected .......................................................................... ODPP.............ODPPopen end .............................................................................................. OE.................OEopen hearth ........................................................................................... OH ................OH



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open ventilated ...................................................................................... OV ................ OVopen-close-open..................................................................................... OCO.............. OCOopen-joisted.......................................................................................... OJ ................. OJopen-type control circuit contacts............................................................... OTCCC.......... OTCCCopen-window unit .................................................................................. OWU............. OWUopener ................................................................................................. OPR .............. opropening ............................................................................................... OPNG............ opngopenside .............................................................................................. OPSD ............ opsdoperate ................................................................................................ OPR .............. oproperating steam pressure.......................................................................... OSP............... OSPoperating system.................................................................................... OS ................ OSoperation.............................................................................................. OPN .............. opnoperational ........................................................................................... OPNL ............ opnloperational assistance and instructive data equipment ..................................... OAIDE........... OAIDEoperational support equipment .................................................................. OSE............... OSEoperator table ........................................................................................ OPRT ............ oprtopposite ............................................................................................... OPP............... oppopposite commutator end ......................................................................... OPPCE........... oppceopposite pulley end................................................................................. OPPPE ........... opppeoptical ................................................................................................. OPT............... optoptical axis ........................................................................................... OPTAX.......... optaxoptical character recognition ..................................................................... OCR .............. OCRoptical detection and ranging .................................................................... OPDAR.......... OPDARoptimum .............................................................................................. OPT............... optoptimum working frequency ..................................................................... OWF ............. OWFoptional ............................................................................................... OPTL............. optlorange ................................................................................................. O .................. oorange ................................................................................................. ORN.............. ornorange indicating light............................................................................. OIL ............... OILorbital determination module .................................................................... ODM ............. ODMorbiting astronomical observatory .............................................................. OAO.............. OAOorbiting geophysical observatory ............................................................... OGO.............. OGOorder ................................................................................................... ORD.............. ordordinary............................................................................................... ORD.............. ordordnance .............................................................................................. ORD.............. ordorganic ................................................................................................ ORG.............. orgorganization.......................................................................................... ORG.............. orgorientation............................................................................................ ORIENT......... orientorifice ................................................................................................. ORF .............. orforigin .................................................................................................. ORIG............. origoriginal................................................................................................ ORIG............. origoriginal equipment manufacturer ............................................................... OEM ............. OEMornament.............................................................................................. ORN.............. ornoscillate ............................................................................................... OSC .............. oscoscillating ............................................................................................ OSCG ............ oscgoscillator.............................................................................................. OSC .............. oscoscillogram........................................................................................... OSCGRM ....... oscgrmoscillograph, string ................................................................................. OSCG ............ OSCGoscilloscope.......................................................................................... SCOPE........... scopeother design activity................................................................................ ODA.............. ODAotherwise specified................................................................................. OS ................ OSounce .................................................................................................. OZ ................ ozounce-inch ........................................................................................... OZIN............. ozin



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out to out.............................................................................................. OO ................ooout-of-print ........................................................................................... OP.................OPoutboard............................................................................................... OUTBD..........OUTBDouter wing ............................................................................................ OW................OWouterback end ........................................................................................ OBE ..............OBEoutgoing............................................................................................... OUT ..............outoutgoing repeater ................................................................................... OGR ..............OGRoutgoing trunk ....................................................................................... OGT ..............OGToutlet................................................................................................... OUT ..............outoutput.................................................................................................. OUT ..............outoutput display unit .................................................................................. ODU..............ODUoutput register ....................................................................................... OR ................ORoutput shift register ................................................................................. OSR...............OSRoutput translator ..................................................................................... OUTXLTR......OUTXLTRoutside................................................................................................. OUT ..............outoutside circumference.............................................................................. OC ................OCoutside diameter..................................................................................... OD ................ODoutside diameter tube .............................................................................. ODT ..............ODToutside face........................................................................................... OF.................OFoutside helix angle.................................................................................. OHA..............OHAoutside mold line.................................................................................... OML..............OMLoutside of metal ..................................................................................... OM................OMoutside radius ........................................................................................ OR ................ORoutside screw & yoke .............................................................................. OSY (OS&Y)...osy (os&y)outside trim template............................................................................... OTT...............OTToutstanding leg ...................................................................................... OSL...............OSLoval head.............................................................................................. OVH..............OVHoval point ............................................................................................. OVP ..............OVPoverall ................................................................................................. OA ................oaoverarm ............................................................................................... OVRM ...........ovrmoverboard ............................................................................................. OVBD............ovbdovercurrent ........................................................................................... OC ................ocovercurrent relay .................................................................................... OCR ..............OCRoverflow .............................................................................................. OVFL.............ovfloverfrequency relay ................................................................................ OFR...............OFRoverhanging .......................................................................................... OVHG............ovhgoverhaul............................................................................................... OVHL ............ovhloverhaul and repair ................................................................................. OR ................oroverhead .............................................................................................. OVHD............ovhdoverload............................................................................................... OVLD ............ovldoverload relay........................................................................................ ORLY ............ORLYoverpower ............................................................................................ OVPWR .........ovpwroverpressurized...................................................................................... OVPRS...........ovprsoverride ............................................................................................... OVRD............ovrdoverride control bits ................................................................................ OCB ..............OCBoversize ............................................................................................... OVS ..............ovsoverspeed ............................................................................................. OVSP.............ovspovertone............................................................................................... OT.................otovertravel ............................................................................................. OVTR ............ovtrovervoltage........................................................................................... OVV..............ovvown doppler nullifier............................................................................... ODN..............ODNoxide ................................................................................................... OXD..............oxdoxidized ............................................................................................... OXD..............oxd



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oxygen ................................................................................................ OXY.............. oxyoxygen breathing apparatus ...................................................................... OBA.............. obaozalid print ........................................................................................... OP ................ op

Ppackage ............................................................................................... PKG .............. pkgpad and boom [refueling] ......................................................................... PB................. PBpadder [capacitor] .................................................................................. PAD .............. PADpadlock................................................................................................ PL................. plpage printer .......................................................................................... PPTR............. PPTRpaint ................................................................................................... PNT............... pntpainted ................................................................................................ PTD............... ptdpainted base.......................................................................................... PB................. pbpainting stringer..................................................................................... PNTSTGR ...... PNTSTGRpaints and oils ....................................................................................... PO ................ POpallet................................................................................................... PLL............... pllpan head .............................................................................................. PNH .............. PNHpanel................................................................................................... PNL............... pnlpanel point ........................................................................................... PP ................. PPpanic bolt ............................................................................................. PANB ............ PANBpanoramic ............................................................................................ PAN .............. panpantograph ........................................................................................... PANT ............ pantpantry.................................................................................................. PAN .............. panpaper................................................................................................... PPR............... pprpaperboard ........................................................................................... PBD .............. pbdparabola............................................................................................... PRB............... prbparabolic.............................................................................................. PRBLC .......... prblcparaboloid ............................................................................................ PRBD ............ prbdparachute ............................................................................................. PRCHT .......... prchtparagraph ............................................................................................. PARA ............ paraparallax ............................................................................................... PRX .............. prxparallel ................................................................................................ PRL............... prlparallel-to-serial..................................................................................... PS ................. psparameter ............................................................................................. PRMTR.......... prmtrparametric amplifier ............................................................................... PARAMP ....... PARAMPparametric synthesis ............................................................................... PARSYN........ PARSYNparavane .............................................................................................. PARV ............ parvparchment ............................................................................................ PCHT ............ pchtparenthesis ........................................................................................... PAREN .......... parenparity bit .............................................................................................. PBIT.............. PBITparkerized ............................................................................................ PARK ............ parkparking ................................................................................................ PRKG ............ prkgparkway............................................................................................... PKWY ........... pkwypart number .......................................................................................... PN ................ PNpart of ................................................................................................. PO ................ popart or identification number..................................................................... PIN ............... PINpartial.................................................................................................. PART ............ partparting line [castings].............................................................................. PL................. PLpartition............................................................................................... PTN............... ptnpartly .................................................................................................. PTLY............. ptlyparts catalog ......................................................................................... PC................. PCparts kit ............................................................................................... PRTKT .......... prtktparts list............................................................................................... PL................. PL



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party ................................................................................................... PTY...............ptypassage ................................................................................................ PASS .............passpassenger ............................................................................................. PASS .............passpassing scuttle ....................................................................................... PS .................PSpassing window ..................................................................................... PW ................PWpassivate .............................................................................................. PSVT .............psvtpassive................................................................................................. PSIV..............psivpassive airborne detection and ranging ........................................................ PAADAR........PAADARpassive countermeasures .......................................................................... PACM............PACMpassive detection and location of countermeasures.......................................... PADLOC ........PADLOCpassive detection and ranging .................................................................... PADAR ..........padarpaste ................................................................................................... PST ...............pstpastry .................................................................................................. PST ...............pstpatent .................................................................................................. PAT...............patpatent pending ....................................................................................... PATPEND ......PATPENDpathological .......................................................................................... PATHOL ........PATHOLpatrol................................................................................................... PTL ...............ptlpattern ................................................................................................. PATT.............pattpay load ............................................................................................... PLD...............pldpeacoat locker ....................................................................................... PLKR.............plkrpeak inverse [reverse] voltage ................................................................... PRV...............prvpeak to peak.......................................................................................... PP .................PPpedestal................................................................................................ PED...............pedpeeler .................................................................................................. PELR .............pelrpelorus................................................................................................. PLRS .............plrspelorus stand ......................................................................................... PLRSTN.........PLRSTNpencil .................................................................................................. PCL ...............pclpending................................................................................................ PEND.............pendpendular............................................................................................... PNDLR ..........pndlrpenetrate .............................................................................................. PEN...............penpenetration............................................................................................ PEN...............penpennant ................................................................................................ PNNT.............pnntpenny [nails, etc.] ................................................................................... D...................Dpennyweight ......................................................................................... DWT..............dwtpentaerythryte tetranitrate......................................................................... PETN.............PETNpentagon .............................................................................................. PNTGN ..........pntgnpentode................................................................................................ PENT.............pentpercent................................................................................................. PCT ...............pctpercussion ............................................................................................ PERC.............percperfect ................................................................................................. PERF .............perfperforate .............................................................................................. PERF .............perfperformance.......................................................................................... PRFM ............prfmperformance evaluation and review technique ............................................... PERT .............PERTPerformance, Operational, and Maintenance Standards for Electronic Equipment .. POMSEE ........POMSEEperformed............................................................................................. PERF .............perfperimeter acquisition radar ....................................................................... PACR ............PACRperiod.................................................................................................. P ...................pperiodic................................................................................................ PERD.............perdperipheral ............................................................................................. PRPHL...........prphlperipheral command indicator ................................................................... PCI ................PCIperipheral unit [computers] ....................................................................... PU.................PUperiscope.............................................................................................. PERIS ............perispermanent ............................................................................................ PERM ............perm



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permeability.......................................................................................... PERMB.......... permbpermission............................................................................................ PERM............ permperpendicular ........................................................................................ PERP............. perpperson ................................................................................................. PER............... perpersonnel ............................................................................................. PERS............. perspersonnel carrier .................................................................................... PC................. PCperspective ........................................................................................... PERSP ........... persppetroleum............................................................................................. PETRO .......... petropetroleum, oils and lubricant..................................................................... POL............... POLpewter ................................................................................................. PWTR............ pwtrphantom............................................................................................... PHM.............. phmpharmacological .................................................................................... PHARMACOL pharmacolpharmacy ............................................................................................. PHAR ............ pharphase .................................................................................................. PH ................ phphase conversion and step/down ................................................................ PHCVSD........ PHCVSDphase meter .......................................................................................... PHM.............. phmphase shin ............................................................................................ PSH............... pshphase-shin driver.................................................................................... PSHD ............ PSHDphenolic............................................................................................... PHEN ............ phenphillips head ......................................................................................... PHH .............. PHHphonograph .......................................................................................... PHONO.......... phonophosphate............................................................................................. PHOS ............ phosphosphor bronze .................................................................................... PHBRZ .......... phbrzphosphorescent...................................................................................... PHOS ............ phosphoto butt line ....................................................................................... PBL............... PBLphoto contact master ............................................................................... PCM.............. PCMphotocopy ............................................................................................ PHOC ............ Pphotodiode ........................................................................................... PDIO ............. pdiophotoelectric ......................................................................................... PELEC........... pelecphotoelectric cell.................................................................................... PEC............... PECphotoelectric scanner .............................................................................. PES ............... PESphotoflash ............................................................................................ PHOFL .......... phoflphotograph ........................................................................................... PHOTO.......... photophotolithographic ................................................................................... PHOTOLITH... photolithphotostat .............................................................................................. STAT............. statphototransistor ...................................................................................... PXSTR........... pxstrphrase ................................................................................................. PHR .............. phrphysical ............................................................................................... PHYS ............ physphysical configuration identification ........................................................... PCI................ PCIphysiological ........................................................................................ PHYSIOL ....... physiolpickled and oiled.................................................................................... PO ................ popickup ................................................................................................. PU ................ pupicture................................................................................................. PIX ............... pixpiece ................................................................................................... PC................. pcpiece mark............................................................................................ PCMK ........... pcmkpierce .................................................................................................. PRC............... prcpierce, blank, and form die ....................................................................... PBFD............. PBFDpierced aluminum plank........................................................................... PAP............... PAPpierced steel plank.................................................................................. PSP ............... PSPpiezoelectric-crystal unit .......................................................................... CU ................ CUpigment ............................................................................................... PGMT............ pgmtpigtail.................................................................................................. PGT............... pgtpilaster ................................................................................................ P................... p



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piling................................................................................................... PLG...............plgpillar ................................................................................................... PLR ...............plrpillow block.......................................................................................... PLBLK...........PLBLKpilot .................................................................................................... PLT ...............pltpilot light ............................................................................................. PLTLT ...........pltltpilothouse............................................................................................. PLTHS ...........plthspinion.................................................................................................. PIN................pinpinion end ............................................................................................ PE .................PEpint ..................................................................................................... PT .................ptpintle................................................................................................... PTL ...............ptlpioneer ................................................................................................ PION .............pionpipe plug .............................................................................................. PPG ...............ppgpipe rail ............................................................................................... PR .................PRpipe sleeve............................................................................................ PSL ...............PSLpipe tap................................................................................................ PT .................PTpipeline................................................................................................ PPLN .............pplnpipette ................................................................................................. PPE ...............ppepiping.................................................................................................. PP .................pppistol ................................................................................................... PSTL .............pstlpiston .................................................................................................. PSTN .............pstnpitch.................................................................................................... P ...................ppitch circle............................................................................................ PC .................PCpitch diameter........................................................................................ PD.................PDpitch line .............................................................................................. PL .................PLpitometer-log......................................................................................... PTMTLG ........PTMTLGpivot ................................................................................................... PVT...............pvtpivoted door.......................................................................................... PD.................PDpivoted window ..................................................................................... PW ................PWplace ................................................................................................... PL .................plplaces .................................................................................................. PL .................plplain.................................................................................................... PL .................plplain washer.......................................................................................... PW ................PWplan position indicator ............................................................................. PPI ................ppiplan view ............................................................................................. PV.................PVplanar .................................................................................................. PLNR.............plnrplanar epitaxial passivated [transistor] ......................................................... PEP ...............pepplane ................................................................................................... PLN...............plnplane position indicator............................................................................ PPI ................ppiplanet .................................................................................................. PLNT.............plntplanetary .............................................................................................. PLNTY...........plntyplank ................................................................................................... PLK...............plkplanning............................................................................................... PLNG.............plngplaque ................................................................................................. PLQ...............plqplaster ................................................................................................. PLAS .............plasplastic.................................................................................................. PLSTC ...........plstcplate.................................................................................................... PL .................plplate glass............................................................................................. PLGL.............plglplate [electron tube] ................................................................................ P ...................pplated .................................................................................................. PLD...............pldplatform ............................................................................................... PLATF ...........platfplating ................................................................................................. PLTG.............pltgplatinum............................................................................................... PT .................PTpliers ................................................................................................... PLR ...............plr



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plotting................................................................................................ PLOT............. plotplow-steel rope...................................................................................... PSR............... PSRplug cock ............................................................................................. PC................. PCplumbing ............................................................................................. PLMB............ plmbplumbing and deck drain.......................................................................... PDD .............. PDDplunger ................................................................................................ PLGR ............ plgrplus or minus ........................................................................................ PORM ........... PORMpneumatic ............................................................................................ PNEU ............ pneupneumatic tube ...................................................................................... PT................. PTpnpn transistor magnetic logic................................................................... PTML ............ PTMLpocket ................................................................................................. PKT............... pktpoint ................................................................................................... PT................. ptpoint of compound curve ......................................................................... PCC............... PCCpoint of curve........................................................................................ PC................. PCpoint of frog.......................................................................................... PF ................. PFpoint of intersection................................................................................ PI.................. PIpoint of reverse curve.............................................................................. PRC............... PRCpoint of spiral tangent ............................................................................. PST ............... PSTpoint of switch ...................................................................................... PS ................. PSpoint of tangency ................................................................................... PT................. PTpoint-detonating..................................................................................... PD ................ PDpoint-detonating fuze .............................................................................. PDF............... PDFpoint-detonating self-destroying ................................................................ PDSD ............ PDSDpoint-initiating ...................................................................................... PI.................. PIpoint-initiating, base-detonating................................................................. PIBD ............. PIBDpoint-insulating ..................................................................................... PI.................. PIpoint-to-point ........................................................................................ PP ................. PPpolar ................................................................................................... POL............... polpolar orbiting geophysical observatory ........................................................ POGO............ POGOpolarity................................................................................................ PLRT............. plrtpolish .................................................................................................. POL............... polpolyester .............................................................................................. POLYEST....... polyestpolyethylene [insul] ................................................................................ POLTHN........ POLTHNpolyethylene-insulated conductor............................................................... PIC................ PICpolypropylene ....................................................................................... PP ................. pppolystyrene........................................................................................... PS ................. PSpolytetrafluorethylene ............................................................................. PTFE ............. PTFEpolyvinyl chloride .................................................................................. PVC .............. PVCpontoon ............................................................................................... PON .............. ponpoppet ................................................................................................. PPT ............... pptpopping ............................................................................................... POP............... popporcelain.............................................................................................. PORC ............ porcporro................................................................................................... POR .............. porport and starboard .................................................................................. PS ................. psport light .............................................................................................. PLT............... PLTport of embarkation ................................................................................ POE............... POEport side light ........................................................................................ PSLT ............. psltportable ............................................................................................... PORT ............ portposition ............................................................................................... POSN ............ posnposition indicator ................................................................................... PIN ............... PINpositioner ............................................................................................. PSNR............. psnrpositive................................................................................................ POS............... pospositive displacement.............................................................................. PDISPL.......... PDISPL



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positive-intrinsic-negative [transistor] ......................................................... PIN................PINpositive-negative-intrinsic-positive [electron device]....................................... PNIP ..............PNIPpositive-negative-positive [transistor].......................................................... PNP ...............PNPpositive-negative-positive-negative [electron device] ...................................... PNPN.............PNPNpost indicator valve................................................................................. PIV................PIVpost office ............................................................................................ PO.................POposts and timbers.................................................................................... PT .................ptpotable water......................................................................................... POTW............POTWpotential............................................................................................... POT...............potpotential difference ................................................................................. PD.................PDpotential switch...................................................................................... PSW ..............PSWpotential transformer ............................................................................... PT .................PTpotentiometer ........................................................................................ POT...............potpound .................................................................................................. LB................. lbpound per cubic foot ............................................................................... PCF ...............PCFpound per horsepower ............................................................................. PHP ...............phppound-force foot .................................................................................... LBFT .............LBFTpound-force inch .................................................................................... LBIN .............LBINpound-force per hour............................................................................... PHR...............PHRpound-force per square foot ...................................................................... PSF................PSFpound-force per square inch ...................................................................... PSI ................PSIpowder ................................................................................................ PDR (PWD).....pdr (pwd)powder passing ...................................................................................... PWDP ............PWDPpower .................................................................................................. PWR..............pwrpower amplifier ..................................................................................... PA.................PApower and lighting.................................................................................. PL .................PLpower and lighting distribution .................................................................. PLDISTR........pldistrpower circuit breaker............................................................................... PCB...............PCBpower control unit .................................................................................. PCU...............PCUpower directional relay ............................................................................ PDR...............PDRpower factor.......................................................................................... PF .................PFpower oscillator ..................................................................................... PO.................POpower package....................................................................................... PPKG.............PPKGpower plant........................................................................................... PP .................PPpower supply......................................................................................... PWRSPLY ......PWRSPLYpower supply (comb form) ....................................................................... PS .................PSpower supply unit ................................................................................... PSU ...............PSUpower switchboard ................................................................................. PSWBD..........PSWBDpower takeoff ........................................................................................ PTO...............ptopower unit ............................................................................................ PU.................PUpower-driven......................................................................................... PDVN ............pdvnpower-factor meter ................................................................................. PFM ..............PFMpower-line carrier ................................................................................... PLC ...............PLCpower-operated...................................................................................... POPD.............POPDpowerhouse........................................................................................... PWRH............pwrhpractice ................................................................................................ PRAC ............pracpreamplifier .......................................................................................... PREAMP ........preampprearm................................................................................................. PA.................paprebent ................................................................................................ PRBNT...........prbntprecast ................................................................................................. PRCST ...........prcstprecedence............................................................................................ PREC.............precprecharge ............................................................................................. PRCH ............prchprecipitate ............................................................................................ PPT ...............ppt



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precipitation.......................................................................................... PRECP........... precpprecipitin ............................................................................................. PRCPTN ........ prcptnprecision .............................................................................................. PRCN ............ prcnprecision long-range tracking radar............................................................. PRELORTR .... PRELORTRprecision-approach radar.......................................................................... PAR .............. PARprefabricated......................................................................................... PREFAB ........ prefabpreference ............................................................................................ PREF............. prefpreferred .............................................................................................. PFD............... pfdprefix .................................................................................................. PREF............. prefprefocus............................................................................................... PRFCS ........... prfcsprefocused............................................................................................ PREF............. prefpreformed ............................................................................................ PREFMD........ prefmdpreformed beam..................................................................................... PFB............... PFBpreheat ................................................................................................ PHT............... phtpreheater.............................................................................................. PHR .............. phrpreinserted ........................................................................................... PINSTD ......... pinstdpreliminary........................................................................................... PRELIM......... prelimpremium .............................................................................................. PREM............ prempremolded ............................................................................................ PRMLD.......... prmldpremolded expansion joint ....................................................................... PEJ................ PEJpreparation ........................................................................................... PREP............. prepprepare ................................................................................................ PREP............. prepprescription .......................................................................................... PRESCR......... prescrpresent ................................................................................................ PRES............. prespreservation.......................................................................................... PSVTN .......... psvtnpreservation method ............................................................................... PVMTD ......... PVMTDpreservative .......................................................................................... PSVTV .......... psvtvpreserve............................................................................................... PSV............... psvpress ................................................................................................... PRS............... prspress fit ............................................................................................... PRFT............. PRFTpressboard............................................................................................ PBD .............. pbdpressed ................................................................................................ PRSD............. prsdpressed metal ........................................................................................ PRSDMET...... PRSDMETpresser................................................................................................. PRSR............. prsrpresser foot........................................................................................... PRFT............. PRFTpressure ............................................................................................... PRESS ........... presspressure angle ....................................................................................... PA ................ PApressure gage ........................................................................................ PG ................ PGpressure proof ....................................................................................... PP ................. pppressure seal ......................................................................................... PSL ............... PSLpressure vessel ...................................................................................... PV ................ PVpressure-reducing valve ........................................................................... PRV .............. PRVpressure-volume-temperature .................................................................... PVT............... pvtpressurize............................................................................................. PRSRZ........... prsrzprevent ................................................................................................ PVNT ............ pvntprevious............................................................................................... PREV ............ prevprice and availability............................................................................... PA ................ paprimary................................................................................................ PRI................ priPrimary Coolant System .......................................................................... PCS............... PCSprime .................................................................................................. PRM.............. prmprime mover ......................................................................................... PMVR ........... pmvrprimer ................................................................................................. PRMR............ prmrpriming................................................................................................ PRM.............. prm



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print .................................................................................................... PT .................ptprinted ................................................................................................. PTD...............ptdprinted circuit ........................................................................................ PC .................PCprinted circuit board................................................................................ PCB...............PCBprinted wiring........................................................................................ PW ................PWprinted wiring board................................................................................ PWB..............PWBprinted-wiring assembly........................................................................... PWA..............PWAprinter ................................................................................................. PTR ...............ptrprinting................................................................................................ PRNTG ..........prntgprintout ................................................................................................ PTOUT...........ptoutpriority ................................................................................................ PRI ................pripriority data reduction ............................................................................. PDR...............PDRprism................................................................................................... PSM ..............psmprivate automatic branch exchange ............................................................. PABX ............PABXprivate automatic exchange....................................................................... PAX ..............PAXprivate branch exchange........................................................................... PBX...............PBXprobability ............................................................................................ PROB ............probprobable............................................................................................... PROB ............probprobable error........................................................................................ PE .................PEprobe................................................................................................... P ...................pproblem ............................................................................................... PROB ............probprocedure ............................................................................................. PROC ............procproceedings........................................................................................... PROC ............procprocess ................................................................................................ PRCS .............prcsprocess specification [no number] .............................................................. PRCSSPEC .....PRCSSPECprocess specification [number] .................................................................. PS .................PSprocess water cooler................................................................................ PWC..............PWCprocessing ............................................................................................ PRCSG...........prcsgprocessing unit ...................................................................................... PROCU ..........PROCUprocurement.......................................................................................... PRCMT ..........prcmtproducibility engineering and planning ........................................................ PEP ...............pepproduct ................................................................................................ PROD ............prodproduction ............................................................................................ PROD ............prodproduction illustration ............................................................................. PI ..................PIproduction order..................................................................................... PO.................POproduction-estimate card .......................................................................... PECARD ........pecardprofile ................................................................................................. PF .................pfprogram ............................................................................................... PRGM............prgmprogram drum recording .......................................................................... PDR...............PDRprogram register..................................................................................... PRGMRGTR ...prgmrgtprogrammable integrated control equipment ................................................. PICE..............PICEprogrammable logic array......................................................................... PLA...............PLAprogrammable logic controller................................................................... PLC ...............PLCprogrammable unijunction [transistor] ......................................................... PUJT..............PUJTprogrammed instruction ........................................................................... PI ..................PIprogramming......................................................................................... PRGMG .........prgmgprogramming language 1.......................................................................... PL1................PL1progress ............................................................................................... PROG ............progprogression ........................................................................................... PROG ............progproject ................................................................................................. PROJ .............projprojected window................................................................................... PW ................PWprojectile .............................................................................................. PJCTL............pjctlprojection ............................................................................................. PJTN..............pjtn



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projector .............................................................................................. PJTR ............. pjtrproof................................................................................................... PRF............... prfproof shot [projectile].............................................................................. PS ................. psproofread ............................................................................................. PRFRD .......... prfrdpropane ............................................................................................... PRPN............. prpnpropellant............................................................................................. PRPLT ........... prpltpropelled.............................................................................................. PROP............. proppropeller .............................................................................................. PROP............. proppropeller order....................................................................................... PRO .............. PROpropeller revolution ................................................................................ PRV .............. PRVPropeller Revolution Indicator System ........................................................ PRIS.............. PRISpropelling............................................................................................. PROP............. propproperty ............................................................................................... PROP............. propproperty line ......................................................................................... PL................. PLproportion ............................................................................................ PROPN .......... propnproportional limit ................................................................................... PL................. PLproposal............................................................................................... PRPSL ........... prpslproposed .............................................................................................. PRPSD........... prpsdproprietor ............................................................................................. PROP............. proppropulsion ............................................................................................ PRPLN........... prplnprosthetic ............................................................................................. PRSTC........... prstcprotect................................................................................................. PTCT............. ptctprotective ............................................................................................. PROT ............ protprotective device.................................................................................... PROTDEV...... PROTDEVprotosynthex index ................................................................................. PSI ................ PSIprototype ............................................................................................. PROTO .......... protoprotractor ............................................................................................. PROTR .......... protrproving ground...................................................................................... PG ................ PGprovision.............................................................................................. PROV ............ provprovisioning parts breakdown ................................................................... PPB............... PPBproximity [fuze]..................................................................................... PROX ............ PROXpublic address ....................................................................................... PA ................ PApublication ........................................................................................... PUBN ............ pubnpull and push plate ................................................................................. PPP ............... PPPpull box ............................................................................................... PB................. PBpull button............................................................................................ PLB............... PLBpull rod................................................................................................ PLRD ............ PLRDpull switch............................................................................................ PS ................. PSpull-button switch .................................................................................. PBSW............ PBSWpuller .................................................................................................. PLR............... plrpulley.................................................................................................. PUL............... pulpulley end ............................................................................................ PE................. PEpulsating current .................................................................................... PC................. PCpulsation .............................................................................................. PLSN............. plsnpulsator ............................................................................................... PLSR............. plsrpulse ................................................................................................... PLS ............... plspulse acquisition radar............................................................................. PUAR ............ PUARpulse amplifier ...................................................................................... PA ................ PApulse frequency ..................................................................................... PF ................. PFpulse per minute .................................................................................... PPMIN........... ppminpulse repetition period............................................................................. PRP............... PRPpulse time ............................................................................................ PT................. PTpulse width........................................................................................... PW................ PW



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pulse-amplitude modulation ...................................................................... PAM..............PAMpulse-code modulation............................................................................. PCM ..............PCMpulse-count modulation............................................................................ PCTM ............PCTMpulse-duration modulation ........................................................................ PDM..............PDMpulse-frequency modulation ...................................................................... PFM ..............PFMpulse-interval modulation ......................................................................... PIM ...............PIMpulse-position modulation ........................................................................ PPM ..............PPMpulse-repetition frequency ........................................................................ PRF ...............PRFpulse-repetition rate ................................................................................ PRR...............PRRpulse-repetition time ............................................................................... PRT ...............PRTpulse-time modulation ............................................................................. PTM ..............PTMpulse-time multiplex ............................................................................... PTMUX..........PTMUXpulse-width modulation ........................................................................... PWM .............PWMpulverizer ............................................................................................. PULV.............pulvpump discharge...................................................................................... PDISCH .........PDISCHpump, hydraulic-ram, hand-driven.............................................................. PHRHD ..........PHRHDpunch .................................................................................................. PCH...............pchpunch die ............................................................................................. PD.................pdpunching .............................................................................................. PCHG ............pchgpurchase............................................................................................... PURCH ..........purchpurchase order ....................................................................................... PO.................POpurchase request..................................................................................... PR .................PRpurchasing department specification ........................................................... PDS ...............PDSpure water ............................................................................................ PWTR ............PWTRpurge................................................................................................... PRG...............prgpurging ................................................................................................ PRNG ............prngpurification ........................................................................................... PRFCN...........prfcnpurifier ................................................................................................ PUR...............purpurple.................................................................................................. PRP ...............prppurple indicating light ............................................................................. PIL ................PILpurpose................................................................................................ PRP ...............prppush button ........................................................................................... PB .................PBpush rod............................................................................................... PRD...............PRDpush-button station ................................................................................. PBSTA...........pbstapush-pull .............................................................................................. PP .................pppyramid ............................................................................................... PYR...............pyrpyrogen unit.......................................................................................... PYGN ............PYGNpyrometer............................................................................................. PYROM .........pyrompyrotechnic ........................................................................................... PYRO ............pyro

Qquadrangle............................................................................................ QUAD............quadquadrant............................................................................................... QDRNT..........qdrntquadrature ............................................................................................ QDRTR ..........qdrtrquadruple ............................................................................................. QUADR .........quadrqualified products list .............................................................................. QPL...............QPLqualitative ............................................................................................ QUAL ............qualquality ................................................................................................. QUAL ............qualquality assurance.................................................................................... QA ................QAquality characteristics list ......................................................................... QCL ..............QCLquality conformance inspection.................................................................. QCI ...............QCIquality control ....................................................................................... QC ................QCquality control reliability .......................................................................... QCR ..............QCR



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quality deficiency report .......................................................................... QDR.............. QDRquality operating system .......................................................................... QOS .............. QOSquality verification testing........................................................................ QVT .............. QVTquantitative........................................................................................... QUANT ......... quantquantity ............................................................................................... QTY .............. qtyquantum amplification by stimulated emission of radiation .............................. QUASER........ QUASERquarry ................................................................................................. QRY.............. qryquarry-tile base...................................................................................... QTB .............. QTBquarry-tile floor ..................................................................................... QTF............... QTFquarry-tile roof ...................................................................................... QTR .............. QTRquart ................................................................................................... QT ................ qtquarter................................................................................................. QTR .............. qtrquarter-hard.......................................................................................... QTRH............ qtrhquarter-phase ........................................................................................ QTRPH .......... qtrphquarter-round ........................................................................................ QTRRD.......... qtrrdquartz.................................................................................................. QTZ .............. qtzquaternary ............................................................................................ QUAT............ quatquestion............................................................................................... QUEST .......... questquestion and answer................................................................................ QA ................ qaquick disconnect .................................................................................... QDISC ........... QDISCquick engine change ............................................................................... QEC .............. QECquick-acting.......................................................................................... QA ................ OAquick-break .......................................................................................... QB ................ QBquick-cleaning....................................................................................... QC ................ QCquick-firing .......................................................................................... QF ................ QFquick-look intermediate tape..................................................................... QLIT ............. QLITquick-opening device .............................................................................. QOD.............. QODquiescent.............................................................................................. QUIES ........... quiesquintuple.............................................................................................. QUIN............. quinquotation.............................................................................................. QUOT............ quotquotient ............................................................................................... QUOT............ quot

Rrabbet.................................................................................................. RAB .............. rabradar ................................................................................................... RDR .............. rdrradar (comb form) .................................................................................. R .................. rradar bright display equipment .................................................................. RBDE ............ RBDEradar countermeasures............................................................................. RCM ............. RCMradar input mapper ................................................................................. RIM............... RIMradar mapper, gap filler ........................................................................... RMGF ........... RMGFradar mapper, long range ......................................................................... RMLR ........... RMLRradar planning device .............................................................................. RPD .............. RPDradar simulator ...................................................................................... RSIM............. RSIMradar start............................................................................................. RST............... RSTradar transmitter .................................................................................... RDRXMTR..... rdrxmtrradiac .................................................................................................. RDC .............. rdcradial .................................................................................................. RDL .............. rdlradiate ................................................................................................. RAD.............. radradiated emission ................................................................................... RE ................ REradiated susceptibility ............................................................................. RS................. RSradiation .............................................................................................. RADN............ radnradiator [automotive] .............................................................................. RDTR ............ rdtrradio ................................................................................................... RAD.............. rad



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radio detection and ranging....................................................................... RADAR..........RADARradio direction finding ............................................................................. RDF...............RDFradio frequency...................................................................................... RF .................RFradio frequency amplification by stimulated emission of radiation...................... RASER...........RASERradio inertial.......................................................................................... RIN ...............rinradio interference field intensity................................................................. RIFI...............RIFIradio noise factor [figure] ......................................................................... RNF...............RNFradio operator ........................................................................................ RADOPR........RADOPRradio telegraph....................................................................................... RTLG.............RTLGradio telephony ...................................................................................... RTEL.............RTELradio teletype ........................................................................................ RTT...............RTTradio teletypewriter................................................................................. RTTY.............RTTYradio-frequency choke ............................................................................. RFC...............RFCradio-frequency interference ..................................................................... RHI ...............RHIradioactive............................................................................................ RAACT ..........raactradioactive liquid waste ........................................................................... RALW ...........RALWradiochemistry....................................................................................... RADCHM.......radchmradiographic inspection............................................................................ RADINSP .......radinspradiological........................................................................................... RADL ............radlradiological defense ................................................................................ RADDEF ........RADDEFradiological warfare ................................................................................ RADWAR.......RADWARradius .................................................................................................. R...................rradius .................................................................................................. RAD ..............radrailcar.................................................................................................. RLCR ............rlcrrailing.................................................................................................. RLG ..............rlgrailroad ................................................................................................ RR.................rrrailway ................................................................................................ RY ................ryraintight ............................................................................................... RT.................rtrainwater conductor ................................................................................ RWC..............RWCraised .................................................................................................. RSD...............rsdraised face ............................................................................................ RF .................RFraised face diameter ................................................................................ RFD...............RFDraised face height ................................................................................... RFH...............RFHramjet.................................................................................................. RMJ...............rmjrandom ................................................................................................ RNDM ...........rndmrandom access discrete address system ........................................................ RADAS ..........RADASrandom-access indestructive advanced memory ............................................. RAIAM ..........RAIAMrandom-access memory ........................................................................... RAM..............RAMrange ................................................................................................... RNG ..............rngrange and evaluation guidance for approach and landing.................................. REGAL ..........regalrange error probability ............................................................................. REP ...............REPrange light ............................................................................................ RALT.............raltrange marks .......................................................................................... RM................RMrange surveillance................................................................................... RS .................RSrange-height indicator.............................................................................. RHI ...............RHIrange-rate indicator................................................................................. RRI................RRIrapid action change................................................................................. RAC ..............RACrapid rectilinear...................................................................................... RR.................RRratchet ................................................................................................. RCHT ............rchtrate of change........................................................................................ RC.................RCrateau .................................................................................................. RAT ..............ratrating................................................................................................... RTG ..............rtgratio .................................................................................................... R...................r



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rattail .................................................................................................. RTTL............. rttlraw material.......................................................................................... RM................ RMraw tape write submodule ........................................................................ RTWS............ RTWSraw water ............................................................................................. RW ............... RWrawhide ............................................................................................... RWHD........... rwhdrayon .................................................................................................. RYN.............. rynreactance.............................................................................................. REAC ............ reacreaction ............................................................................................... RCTN ............ rctnreactivate ............................................................................................. REACTVT...... reactvtreactive................................................................................................ REAC ............ reacreactive factor meter ............................................................................... RFM.............. RFMreactive volt-ampere meter ....................................................................... RVA.............. RVAreactive voltmeter .................................................................................. RVM ............. RVMreactor................................................................................................. REAC ............ reacreactor compartment ............................................................................... RC ................ RCreactor core .......................................................................................... RCO .............. RCOread-write [head].................................................................................... RW ............... rwreader.................................................................................................. RDR .............. rdrreader common contact............................................................................ RCC .............. RCCreader tape contact ................................................................................. RTC .............. RTCreadiness.............................................................................................. RDNS ............ rdnsreading ................................................................................................ RDNG............ rdngreadout ................................................................................................ RDOUT.......... rdoutreadout and relay ................................................................................... RR ................ RRready................................................................................................... RDY.............. rdyready for issue....................................................................................... RFI................ RFIready service......................................................................................... RS................. RSreal and not-corrected input data ................................................................ RANCID ........ RANCIDreal time .............................................................................................. RT ................ RTreal-time input-output transducer ............................................................... RIOT ............. RIOTreamer................................................................................................. RMR ............. rmrrear connection...................................................................................... RC ................ RCrear view.............................................................................................. RV ................ RVrear-connected....................................................................................... RC ................ RCrebabbit ............................................................................................... RBBT ............ rbbtrecalculated .......................................................................................... RECALC........ recalcrecall................................................................................................... RCL .............. rclreceive ................................................................................................ RCV .............. rcvreceive-only tape perforator ...................................................................... ROTP ............ ROTPreceived............................................................................................... RCVD............ rcvdreceiver ............................................................................................... RCVR............ rcvrreceiver-transmitter ................................................................................ RT ................ RTreceiving.............................................................................................. RCVG............ rcvgreceptacle............................................................................................. RCPT............. rcptreception.............................................................................................. RCPTN .......... rcptnrecess .................................................................................................. REC .............. recrecharger.............................................................................................. RECHRG........ rechrgreciprocate ........................................................................................... RECIP ........... reciprecirculate ............................................................................................ RECIRC ......... recircreclaiming ............................................................................................ RCLMG ......... rclmgreclined ............................................................................................... RCLD ............ rcldreclose................................................................................................. RECL ............ reclrecognition ........................................................................................... RECOG.......... recog



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recoil................................................................................................... RCL...............rclrecoil mechanism ................................................................................... RECMECH .....recmechrecoilless .............................................................................................. RCLS.............rclsrecommend........................................................................................... RECM............recmrecompression ....................................................................................... RCMPRS ........rcmprsrecondense............................................................................................ RECOND........recondrecondition ........................................................................................... RCNDT ..........rcndtreconnaissance....................................................................................... RECON ..........reconreconnaissance (aircraft) .......................................................................... R...................rrecord.................................................................................................. RCD ..............rcdrecord and report .................................................................................... RAR ..............RARrecording ammeter.................................................................................. RAMM...........RAMMrecording demand meter........................................................................... RDM..............RDMrecording kilovolt-ampere meter ................................................................ RKVAM.........RKVAMrecording tachometer............................................................................... RTM..............RTMrecording varmeter ................................................................................. RVARM .........RVARMrecoverability ........................................................................................ RECY ............recyrecovery............................................................................................... RCVY ............rcvyrecreation ............................................................................................. RCN ..............rcnrectangle .............................................................................................. RECT.............rectrectangular............................................................................................ RECT.............rectrectifier ................................................................................................ RECT.............rectrecurrent .............................................................................................. RCUR ............rcurred ...................................................................................................... R...................rred fuming nitric acid .............................................................................. RFNA ............RFNAred indicating lamp ................................................................................. RIL................RILredesignate ........................................................................................... REDSG ..........redsgreduce ................................................................................................. RDC ..............rdcreduced charge ...................................................................................... RCHG ............RCHGreduced hard pressure.............................................................................. RHP...............RHPreducer ................................................................................................ RDCR ............rdcrreduction .............................................................................................. RDCN ............rdcnreduction of area .................................................................................... RA ................RAreefing hook.......................................................................................... RHK ..............rhkreentry ................................................................................................. REY ..............reyreentry vehicle ....................................................................................... RV ................RVrefacer ................................................................................................. RFCR.............rfcrreference .............................................................................................. REF ...............refreference designation .............................................................................. REFDES.........refdesreference engineering photo template .......................................................... REPT .............REPTreference line ........................................................................................ REFL .............REFLrefined ................................................................................................. RFND ............rfndrefinery................................................................................................ REF ...............refreflectance ............................................................................................ REFL .............reflreflected............................................................................................... REFLD...........refldreflective insulation ................................................................................ RI..................RIreflector ............................................................................................... REFL .............reflreflex................................................................................................... RFLX.............rflxrefractory ............................................................................................. RFRC.............rffcrefrigerant ............................................................................................ RFGT.............rfgtrefrigerate............................................................................................. REFR.............reffrefrigerator, mechanical household ............................................................. RMH..............RMHregardless of feature size .......................................................................... RFS ...............RFS



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regenerate ............................................................................................ REGEN.......... regenregenerative .......................................................................................... REGEN.......... regenregister ................................................................................................ RGTR ............ rgtrregister drive......................................................................................... RD ................ RDregular................................................................................................. RGLR ............ rglrregulate ............................................................................................... RGLT ............ rgltregulator .............................................................................................. RGLTR .......... rgltrreheater ............................................................................................... RHR .............. rhrreid vapor pressure ................................................................................. RVP .............. RVPreinforce .............................................................................................. REINF ........... reinfreinforced concrete ................................................................................. RC ................ RCreinforced tile lintel ................................................................................ RTL............... RTLreinforced-concrete culvert pipe................................................................. RCCP ............ RCCPreinforced-concrete pipe .......................................................................... RCP............... RCPreinforcing steel..................................................................................... RST............... RSTreject................................................................................................... REJ ............... rejrelate................................................................................................... RLT............... rltrelation ................................................................................................ RLTN ............ rltnrelative ................................................................................................ REL............... relrelative biological effectiveness ................................................................. RBE .............. RBErelative humidity.................................................................................... RH ................ RHrelaxation ............................................................................................. RLXN............ rlxnrelay ................................................................................................... RLY .............. rlyrelay block ........................................................................................... RB ................ RBrelease................................................................................................. REL............... relreliability ............................................................................................. RELBL .......... relblrelief ................................................................................................... RLF............... rlfrelief radii ............................................................................................ RR ................ RRrelief valve ........................................................................................... RV ................ RVrelieve ................................................................................................. RLV .............. rlvrelocated .............................................................................................. RELOC .......... relocremainder............................................................................................. REM.............. remremote................................................................................................. RMT.............. rmtremote control ....................................................................................... RC ................ RCRemote Control System........................................................................... RCS............... RCSremovable ............................................................................................ REM.............. remremovable cover .................................................................................... REMCOV....... REMCOVremove ................................................................................................ RMV ............. rmvremove and replace................................................................................. RR ................ rrrenewable............................................................................................. RNWBL ......... RNWBLrenewal................................................................................................ RNL .............. rnlrenewal parts data .................................................................................. RPD .............. RPDrenewal parts leaflet................................................................................ RPL............... RPLrepair .................................................................................................. RPR............... rprrepeat .................................................................................................. RPT............... rptrepeater ............................................................................................... RPTR............. rptrrepeating coil ........................................................................................ RPTC............. RPTCrepeller ................................................................................................ RPLR............. rplrrepetition ............................................................................................. RPTN ............ rptnreplace ................................................................................................ REPL............. replreplenishing.......................................................................................... RPLNG .......... rplngreplenishment........................................................................................ RPNSM.......... rpnsmreport .................................................................................................. RPRT............. rprt



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report program generator.......................................................................... RPG...............RPGreproduce ............................................................................................. REPRO...........reproreproducer ............................................................................................ RPDR ............rpdrreproducing unit..................................................................................... RU ................RUrepublic................................................................................................ REPB.............repbrepulsion .............................................................................................. RPLSN...........rplsnrequest................................................................................................. REQ ..............reqrequest for engineering change .................................................................. REC...............RECrequest for price quotation ........................................................................ RPQ...............RPQrequire ................................................................................................. REQ ..............reqrequired ............................................................................................... REQD ............reqdrequirement........................................................................................... REQT.............reqtrequisition ............................................................................................ REQN ............reqnrescind................................................................................................. RESC.............rescrescue.................................................................................................. RSQ...............rsqrescue boat ........................................................................................... RSQBT...........RSQBTrescue equipment locker........................................................................... REL...............RELresearch ............................................................................................... RES ...............resresearch and development ........................................................................ R&D..............R&Dreseating .............................................................................................. RESEAT.........reseatreserve................................................................................................. RSV...............rsvreserve feedwater ................................................................................... RFW..............RFWreserve oil tank ...................................................................................... ROT ..............ROTreservoir............................................................................................... RSVR ............rsvrreset-set trigger ...................................................................................... RST ...............RSTresidual ................................................................................................ RESID............residresidual field ......................................................................................... RESFLD.........resfldresilient................................................................................................ RESIL ............resilresistance (comb form) ............................................................................ R...................Rresistance temperature detector .................................................................. RTD ..............RTDresistance-capacitance ............................................................................. RC.................RCresistance-capacitance coupled .................................................................. RCCPLD ........RCCPLDresistance-inductance .............................................................................. RL.................RLresistance-inductance-capacitance .............................................................. RLC...............RLCresistor................................................................................................. RES ...............resresistor-capacitor-transistor logic ............................................................... RCTL.............RCTLresistor-transistor logic ............................................................................ RTL...............RTLresolution ............................................................................................. RESOLN ........resolnresolver................................................................................................ RSLVR...........rslvrresonant ............................................................................................... RESN.............resnrespective ............................................................................................. RSPV.............rspvrespectively........................................................................................... RESP .............resprespirator.............................................................................................. RSPTR ...........rsptrrespond................................................................................................ RSPD.............rspdresponse............................................................................................... RSPS .............rspsrestore ................................................................................................. RST ...............rstrestorer ................................................................................................ RESTR...........restrrestrict ................................................................................................. RSTR.............rstrretain................................................................................................... RET...............retretainer ................................................................................................ RTNR ............rtnrretard................................................................................................... RTD ..............rtdretardation coil ...................................................................................... RTDC ............RTDCretension .............................................................................................. RETNN ..........retnn



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reticle.................................................................................................. RTCL ............ rtclreticulated grating .................................................................................. RG ................ RGretraced ............................................................................................... RETR ............ retrretract.................................................................................................. RETR ............ retrretrieve ................................................................................................ RTRV ............ rtrvretroactive ............................................................................................ RETRO .......... retroretrogressive ......................................................................................... RETROG........ retrogreturn .................................................................................................. RTN .............. rtnreturn head ........................................................................................... RHD.............. RHDreturn-to-zero ........................................................................................ RZ ................ RZreverberation control of gain ..................................................................... RCG .............. RCGreverse ................................................................................................ RVS .............. rvsreverse-acting........................................................................................ RACT ............ RACTreverse-current ...................................................................................... REVCUR........ revcurreverse-current device ............................................................................. RCD .............. RCDreversible ............................................................................................. RVSBL .......... rvsblreview ................................................................................................. REV .............. revrevise .................................................................................................. REV .............. revrevision ............................................................................................... REV .............. revrevolution............................................................................................. REV .............. revRevolution Indicating System ................................................................... RIS................ RISrevolution per minute .............................................................................. RPM.............. RPMrevolution per second .............................................................................. RPS............... RPSrevolve ................................................................................................ RVLV............ rvlvrewind................................................................................................. RWND........... rwndrheostat................................................................................................ RHEO............ rheorhodium............................................................................................... RHOD............ rhodrhombic ............................................................................................... RHOMB......... rhombrhomboid ............................................................................................. RHOMB......... rhombribbed.................................................................................................. RIB ............... ribribbon ................................................................................................. RBN .............. rbnridge ................................................................................................... RDG.............. rdgrigging ................................................................................................ RGNG............ rgngright.................................................................................................... R .................. Rright angle ............................................................................................ RTANG.......... RTANGright bank............................................................................................. RBK .............. RBKright hand............................................................................................. RH ................ RHright side.............................................................................................. RS................. RSright-hand drive ..................................................................................... RHDR............ RHDRright-hand side ...................................................................................... RHS .............. RHSright-of-way.......................................................................................... RW ............... RWrighting arm.......................................................................................... GZ ................ gzrigid.................................................................................................... RGD.............. rgdring counter .......................................................................................... RCNTR.......... RCNTRriser .................................................................................................... R .................. Rrivet .................................................................................................... RVT .............. rvtroasting ............................................................................................... RSTG ............ rstgrocker.................................................................................................. RKR .............. rkrrocker arm............................................................................................ RKRA............ RKRArocket.................................................................................................. RKT .............. rktrocket assist takeoff ................................................................................ RATO............ RATOrocket launcher...................................................................................... RL ................ RLrocket target.......................................................................................... RT ................ RT



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Rockwell hardness.................................................................................. RH ................RHrod control ............................................................................................ RCONT ..........RCONTrod drive .............................................................................................. RDDR ............rddrRoebling Wire Gage ............................................................................... RWG .............RWGroll roofing ........................................................................................... RR.................RRrolled................................................................................................... RLD ..............rldroller ................................................................................................... RLR...............rlrrolling steel door .................................................................................... RSD...............RSDroof drain ............................................................................................. RD ................RDroof leader ............................................................................................ RL.................RLroofing................................................................................................. RFG...............rfgroot diameter......................................................................................... RD ................RDroot mean square .................................................................................... RMS ..............RMSroot sum square...................................................................................... RSS ...............RSSrotary .................................................................................................. RTRY ............rtryrotate................................................................................................... ROT ..............rotrotating passing scuttle ............................................................................ RPS ...............RPSrotator ................................................................................................. ROTR ............rotrrotodrome............................................................................................. RD ................rdrotometer.............................................................................................. ROTOMT .......rotomtrotor.................................................................................................... RTR...............rtrrough................................................................................................... RGH ..............rghrough opening ....................................................................................... RO ................ROroughness height rating............................................................................ RHR ..............RHRround................................................................................................... RND ..............rndround head............................................................................................ RDH ..............rdhround trips per hour ................................................................................ RTPH.............RTPHrounding .............................................................................................. RDG ..............rdgroute ................................................................................................... RTE...............rteroutine ................................................................................................. ROUT ............routrubber.................................................................................................. RBR ..............rbrrubber base ........................................................................................... RB.................RBrubber hose jacket .................................................................................. RJH ...............RJHrubber insulation .................................................................................... RINSUL .........RINSULrubber sheath......................................................................................... R...................Rrubber-covered cable............................................................................... RCC ..............RCCrubber-tile floor ..................................................................................... RTF ...............RTFrubble stone .......................................................................................... RS .................RSrudder.................................................................................................. RUD ..............rudrudder angle order .................................................................................. RAO ..............RAOrules and procedures ............................................................................... RP .................RPrunning light ......................................................................................... RNLT.............RNLTrunning telltale light................................................................................ RTTL.............RTTLrunning, signal, and anchor lights ............................................................... RSALT...........RSALTrunout.................................................................................................. RO ................ROrunway ................................................................................................ RWY .............rwyrust preventative..................................................................................... RPVNTV ........RPVNTVrustproof .............................................................................................. RSTPF ...........RSTPF

Ssaddle.................................................................................................. SDL...............sdlsafe locker ............................................................................................ SL .................SLsafe operating area.................................................................................. SOAR ............SOAR



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safe working pressure.............................................................................. SWP .............. SWPsafe-practice data sheet............................................................................ SPDS............. SPDSsafety .................................................................................................. SAF............... safsafety valve .......................................................................................... SV ................ SVsail area ............................................................................................... SA ................ SAsalinity ................................................................................................ SAL............... salsalinity indicator .................................................................................... SI.................. SIsalinometer........................................................................................... SAL............... salsalt water ............................................................................................. SW................ SWsalt water circulating pump....................................................................... SWCP............ SWCPsalt water pump ..................................................................................... SWP .............. SWPsalt-glazed structural facing units ............................................................... SGSFU........... SGSFUsalt-glazed structural unit base................................................................... SGSUB .......... SGSUBsaluting................................................................................................ SAL............... salsalvage ................................................................................................ SALV ............ salvsame size ............................................................................................. SS ................. SSsample part ........................................................................................... SP ................. SPsampling .............................................................................................. SMPLG.......... smplgsand-loaded .......................................................................................... SL................. SLsandblast.............................................................................................. SDBL ............ sdblsanitary................................................................................................ SAN .............. sansaponify............................................................................................... SAPON .......... saponsatellite................................................................................................ SATL............. satlsatellite paper-tape transfers...................................................................... SATPATT....... SATPATTsaturable core........................................................................................ SC................. SCsaturable reactor .................................................................................... SR................. SRsaturate................................................................................................ SAT............... satsawtooth .............................................................................................. ST................. stsaybolt second furol................................................................................ SSF ............... SSFsaybolt second universal .......................................................................... SSU............... SSUscale ................................................................................................... SC................. scscale model .......................................................................................... SCMOD ......... SCMODscanner ................................................................................................ SCNR ............ scnrscanning .............................................................................................. SCNG ............ scngscanning electron microscope.................................................................... SEM .............. SEMscattered .............................................................................................. SCTD ............ sctdscavenge .............................................................................................. SCAV ............ scavscavenging oil pump ............................................................................... SOP............... SOPschedule............................................................................................... SCHED .......... schedschematic ............................................................................................. SCHEM.......... schemschmitt trigger ....................................................................................... ST................. STscience ................................................................................................ SCI................ sciscintillator ............................................................................................ SCINT ........... scintscleroscope........................................................................................... SCLER........... sclerscleroscope hardness............................................................................... SH ................ SHscooter ................................................................................................ SCTR............. sctrscope .................................................................................................. SCP............... scpscraper ................................................................................................ SRPR............. srprscraping............................................................................................... SRPG............. srpgscreen.................................................................................................. SCRN ............ scrnscreen door........................................................................................... SCD .............. SCDscreen gate ........................................................................................... SCRGT .......... SCRGTscrew .................................................................................................. SCR............... scr



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screw down........................................................................................... SCRDN ..........SCRDNscrew thread.......................................................................................... SCRTHD ........SCRTHDscrewdriver ........................................................................................... SCDR ............SCDRscrewed bonnet ...................................................................................... SCRDB ..........scrdbscullery................................................................................................ SCLY.............sclyscupper ................................................................................................ SCUP.............scupscuttle.................................................................................................. S ...................Ssea flood .............................................................................................. SF .................SFsea level ............................................................................................... SL .................SLsea level static ....................................................................................... SLS ...............SLSsea loading pipeline ................................................................................ SLPL .............SIPIseal-in device ........................................................................................ SID................SIDsealed .................................................................................................. SLD...............sldsealing ................................................................................................. SEG...............segseamless............................................................................................... SMLS ............smlsseamless steel tubing ............................................................................... SSTU .............SSTUsearch.................................................................................................. SRCH ............srchsearchlight ............................................................................................ SCHLT...........schltseater................................................................................................... STER .............stersecant .................................................................................................. SEC ...............secsecond ................................................................................................. SEC ...............secsecondary ............................................................................................. SEC ...............secsection ................................................................................................. SECT .............sectsector .................................................................................................. SCTR.............sctrsector scan indicator................................................................................ SSI ................SSIsecuring ............................................................................................... SECRG...........secrgsecurity ................................................................................................ SCTY.............sctysecurity guard window............................................................................. SGW..............SGWsecurity window screen and guard .............................................................. SWSG ............SWSGsedan................................................................................................... SED...............sedsegment ............................................................................................... SEG...............segselect................................................................................................... SEL ...............selselect-operate sense ................................................................................ SEOPSN.........SEOPSNselective identification feature ................................................................... SIF ................SIFselective ringing..................................................................................... SR .................SRselectivity............................................................................................. SEL ...............selselector ................................................................................................ SEL ...............selselenium rectifier ................................................................................... SR .................SRself-cleaning ......................................................................................... SLFCLN.........SLFCLNself-closing ........................................................................................... SELFCL .........SELFCLself-contained........................................................................................ SCNTN ..........SCNTNself-destroying....................................................................................... SD.................SDself-generating....................................................................................... SLFGEN.........slfgenself-indicating ....................................................................................... SLFIND..........slfindself-locking........................................................................................... SLFLKG.........slflkgself-propelled ........................................................................................ SELFPROP .....selfpropself-sealing ........................................................................................... SLFSE............slfseself-synchronous .................................................................................... SELSYN.........selsynself-tapping........................................................................................... SLFTPG .........slftpgself-tapping........................................................................................... ST .................stself-ventilated........................................................................................ SV.................SVselsyn .................................................................................................. SELS .............selssemaphore ............................................................................................ SMPHR ..........smphr



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semiarmor-piercing ................................................................................ SAP............... SAPsemiconductor....................................................................................... SEMICOND.... semicondsemiconductor bilateral switch .................................................................. SBS............... SBSsemiconductor controlled rectifier .............................................................. SCR............... SCRsemiconductor controlled switch................................................................ SCS............... SCSsemiconductor unilateral switch................................................................. SUS............... SUSsemienclosed ........................................................................................ SEN............... sensemifinished ......................................................................................... SF ................. sfsemifireproof ........................................................................................ SFPRF ........... sfprfsemifixed ............................................................................................. SFXD ............ sfxdsemiflush ............................................................................................. SFLS ............. sflssemisteel.............................................................................................. SS ................. sssemitrailer ............................................................................................ STLR............. stlrsemivital .............................................................................................. SVTL............. svtlsend and receive .................................................................................... SR................. SRsender ................................................................................................. SDR .............. sdrsending................................................................................................ SNDG............ sndgsenior .................................................................................................. SR................. srsense................................................................................................... SEN............... sensense amplifier ...................................................................................... SA ................ SAsensitive............................................................................................... SENS............. senssensitivity............................................................................................. SENS............. senssensitivity time control ............................................................................ STC............... STCsensitized ............................................................................................. SNTZD .......... sntzdsensitized material print ........................................................................... SMP .............. SMPsensitizing ............................................................................................ SNTZG .......... sntzgsensor.................................................................................................. SNSR............. snsrseparate ............................................................................................... SEP ............... sepSeptember ............................................................................................ SEP ............... Sepseptuple ............................................................................................... SPT ............... sptsequence .............................................................................................. SEQ............... seqsequence check...................................................................................... SEQCHK........ seqchksequential coding ................................................................................... SECO ............ SECOsequential component automatic testing....................................................... SCAT ............ SCATserial................................................................................................... SER............... serserial number ........................................................................................ SERNO .......... SERNOseries .................................................................................................. SER............... serseries relay ........................................................................................... SRLY ............ SRLYserrate ................................................................................................. SERR............. serrserver .................................................................................................. SVR .............. svrservice................................................................................................. SVCE ............ svceservice bulletin ...................................................................................... SB................. SBservice ceiling ....................................................................................... SRVCLG........ SRVCLGservice fuel oil....................................................................................... SFO............... SFOservice sink .......................................................................................... SS ................. SSservice, sort and merge ............................................................................ SESAME........ SESAMEservice-factor amperes............................................................................. SFA............... SFAserving ................................................................................................ SERG ............ sergservo................................................................................................... SVO .............. svoservomechanism .................................................................................... SERVO .......... servoservomotor ........................................................................................... SVMTR.......... svmtrset screw.............................................................................................. SSCR............. sscrsetter................................................................................................... SETR............. setr



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setting ................................................................................................. SET ...............setsettling................................................................................................. SETLG...........setlgsewage................................................................................................. SEW ..............sewsewer................................................................................................... SEW ..............sewsexless [connector] ................................................................................. SXL...............SXIsextant ................................................................................................. SXTN.............sxtnsextuple ............................................................................................... SXT...............sxtshackle ................................................................................................ SH.................shshaft.................................................................................................... SFT ...............sftshaft alley............................................................................................. SA.................SAshaft center ........................................................................................... SC .................SCshaft extension....................................................................................... SFTEXT .........SFTEXTshaft gear ............................................................................................. SHFGR...........SHFGRshakeproof............................................................................................ SHPRF ...........shprfshank................................................................................................... SHK ..............shkshape................................................................................................... SHP ...............shpshaped charge........................................................................................ SC .................SCshare ................................................................................................... SH.................shsharpener.............................................................................................. SHRP.............shrpshear plate ............................................................................................ SP .................SPshearing ............................................................................................... SHRNG ..........shrngsheathing.............................................................................................. SHTHG ..........shthgsheave ................................................................................................. SHV ..............shvsheet ................................................................................................... SH.................shsheeting ............................................................................................... SH.................shshell .................................................................................................... SHL...............shlshell-destroying ..................................................................................... SD.................SDshellac ................................................................................................. SHL...............shlshield .................................................................................................. SHLD.............shldshield [electronic device].......................................................................... SH.................SHshielding .............................................................................................. SHLD.............shldshift .................................................................................................... SHF ...............shfshift register .......................................................................................... SR .................SRship class.............................................................................................. SHPCL...........SHPCLship control........................................................................................... SCONT ..........SCONTship course ........................................................................................... SCOU ............SCOUship distance ......................................................................................... SDIS ..............SDISShip Draft Indicating System .................................................................... SDIS ..............SDISship draft indicator transmitter ................................................................... SDIT..............SDITShip Inertial Navigational System .............................................................. SINS ..............SINSship parts control center ........................................................................... SPCC .............SPCCship service........................................................................................... SS .................SSship service turbo generator ...................................................................... SSTG .............SSTGship speed............................................................................................. SSP................SSPship status............................................................................................. SHSTS ...........SHSTSshipboard ............................................................................................. SHPBD...........SHPBDshipboard allowance list........................................................................... SAL...............SALshipbuilder............................................................................................ SHBLDR ........shbldrshipfitter .............................................................................................. SFTR .............sftrshipment .............................................................................................. SHPT .............shptshipping ............................................................................................... SHPNG ..........shpngshipping center ...................................................................................... SHCR ............SHCRshock absorber....................................................................................... SHABS...........SHABS



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shoemaker............................................................................................ SHMKR ......... shmkrshop missile assembly and maintenance....................................................... SMSA............ SMSAshop order ............................................................................................ SO ................ SOshop replaceable unit .............................................................................. SRU .............. srushore connection .................................................................................... SHCONN ....... SHCONNshore terminal box.................................................................................. STB............... STBshoreline .............................................................................................. SHLN ............ shlnshort circuit .......................................................................................... SHORT .......... shortshort range navigation ............................................................................. SHORAN ....... SHORANshort side ............................................................................................. SHTSD .......... SHTSDshort takeoff and landing.......................................................................... STOL............. STOLshort taper ............................................................................................ STPR............. STPRshort time constant ................................................................................. SHTC ............ SHTCshort wave............................................................................................ SW................ SWshort wheelbase ..................................................................................... SWB.............. SWBshort-circuit ratio ................................................................................... SCR............... SCRshortleaf yellow pine............................................................................... SLYP............. SLYPshot blast.............................................................................................. SHBL ............ SHBLshots per minute..................................................................................... SPM .............. SPMshoulder............................................................................................... SHLDR .......... shldrshower ................................................................................................ SH ................ shshower and toilet.................................................................................... SHT............... shtshower drain ......................................................................................... SD ................ SDshown ................................................................................................. SHN .............. shnshrapnel ............................................................................................... SHRAP .......... shrapshredder............................................................................................... SHRDR.......... shrdrshrink mockup template........................................................................... SMUT............ SMUTshroud ................................................................................................. SHRD ............ shrdshroud fin............................................................................................. SHRDF .......... SHRDFshunt................................................................................................... SH ................ shshunt trip.............................................................................................. SHTR ............ SHTRshutdown ............................................................................................. SHTDN.......... shtdnshutoff valve ......................................................................................... SOV .............. SOVshutter ................................................................................................. SHTR ............ shtrshuttle ................................................................................................. SHTL............. shtlside light .............................................................................................. SILT.............. SILTside looking radar................................................................................... SLR............... SLRside upset jaw........................................................................................ SUJ ............... SUJside water depth..................................................................................... SWD ............. SWDside-lobe blanking .................................................................................. SLB............... SLBside-lobe cancellation.............................................................................. SLC............... SLCside-lobe suppression .............................................................................. SLS ............... SLSsideband .............................................................................................. SB................. sbsidewinder............................................................................................ SIWDR .......... siwdrsiding .................................................................................................. SDG .............. sdgsignal .................................................................................................. SIG ............... sigsignal and homing light ........................................................................... SHLT............. SHLTsignal light bare ..................................................................................... SLB............... SLBsignal-to-noise ratio ................................................................................ SNR .............. SNRsignaling .............................................................................................. SNLG ............ snlgsilence................................................................................................. SIL................ silsilencing .............................................................................................. SILG ............. silgsilicomanganese steel.............................................................................. SMS .............. SMS



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silicon controlled rectifier (see semiconductor controlled rectifier)silicon precision alloy transistor ................................................................. SPAT .............SPATsilicon unilateral diffused transistor ............................................................ SUDT.............SUDTsilver ................................................................................................... SIL ................silsilver braze ........................................................................................... SB .................SBsilver brazing ........................................................................................ SB .................SBsilver brazing union ................................................................................ SBU...............SBUsilver solder .......................................................................................... SILS ..............SILSsimilar ................................................................................................. SIM ...............simsimplex................................................................................................ SPLX .............splxsimulator .............................................................................................. SIM ...............simsimulator compiler.................................................................................. SIMCOM........SIMCOMsine..................................................................................................... SIN................sinsine of the amplitude ............................................................................... SN.................SNsingle .................................................................................................. SGL...............sglsingle conductor..................................................................................... 1C .................1csingle conductor..................................................................................... SC .................scsingle rotating knife ................................................................................ SRKN ............SRKNsingle sided........................................................................................... SS .................sssingle signal .......................................................................................... SSIG..............SSIGsingle swing blocking oscillator ................................................................. SSBO.............SSBOsingle weight......................................................................................... SW ................SWsingle-base solid propellant....................................................................... SBSP .............SBSPsingle-beam klystron ............................................................................... SBK...............SBKsingle-conductor cable............................................................................. SCC...............SCCsingle-contact ........................................................................................ SC .................SCsingle-cylinder....................................................................................... SCYL.............SCYLsingle-end............................................................................................. SE .................SEsingle-face ............................................................................................ SIF ................SIFsingle-feeder ......................................................................................... SFDR.............SFDRsingle-groove single-petticoat [insul]........................................................... SGSP .............sgspsingle-groove [insul] ............................................................................... SG.................SGsingle-phase .......................................................................................... SPH ...............SPHsingle-pole............................................................................................ SP .................SPsingle-pole double-throw.......................................................................... SPDT .............SPDTsingle-pole double-throw switch ................................................................ SPDTSW ........SPDTSWsingle-pole single-throw........................................................................... SPST..............SPSTsingle-pole single-throw switch.................................................................. SPSTSW.........SPSTSWsingle-pole switch................................................................................... SPSW ............SPSWsingle-shot ............................................................................................ SS .................SSsingle-sideband...................................................................................... SSB ...............SSBsingle-sideboard..................................................................................... SSBD.............SSBDsingle-throw.......................................................................................... ST .................STsingle-tire ............................................................................................. ST .................STsinter ................................................................................................... SNTR.............sntrsintered................................................................................................ SNTR.............sntrsiphon ................................................................................................. SPHN.............sphnsiren.................................................................................................... SN.................snsituation ............................................................................................... SIT ................sitsketch.................................................................................................. SK.................skskinned ................................................................................................ SK.................skskinner................................................................................................. SK.................skskirt .................................................................................................... SKT...............skt



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skirted ................................................................................................. SKD .............. skdskylight ............................................................................................... SLT............... sltslate .................................................................................................... SLT............... sltslate-shingle roof ................................................................................... SSR............... SSRsleeve.................................................................................................. SLV............... SIVsleeve bearing ....................................................................................... SB................. SBsleeving ............................................................................................... SLVG ............ slvgslice .................................................................................................... SLC............... SICslide.................................................................................................... SL................. slsliding ................................................................................................. SL................. slsliding door .......................................................................................... SLD............... SLDsliding expansion joint ............................................................................ SEJ................ SEJslinger ................................................................................................. SLGR ............ slgrslip fit ................................................................................................. SF ................. SFslip joint .............................................................................................. SJ.................. SJslip ring ............................................................................................... SR................. SRslop sink .............................................................................................. SS ................. SSslope ................................................................................................... SLP ............... SIPslotted ................................................................................................. SLTD............. sltdslow operate [relay] ................................................................................ SO ................ SOslow release [relay]................................................................................. SR................. SRslow speed............................................................................................ SLSP ............. SLSPslowdown............................................................................................. SLD............... sldsludge ................................................................................................. SLG............... slgsmall................................................................................................... SM ................ smsmall arms............................................................................................ SA ................ SAsmoke ................................................................................................. SMK.............. smksmoke generator .................................................................................... SMKGEN ....... SMKGENsmokeless............................................................................................. SMKLS.......... smklssmokeless powder .................................................................................. SP ................. SPsmokestand........................................................................................... SS ................. sssmooth contour...................................................................................... SC................. SCsmooth neck ......................................................................................... SMNK ........... SMNKsmooth-face structural clay tile .................................................................. SFSCT ........... SFSCTsmooth-surface built-up roof..................................................................... SSBR............. SSBRsmoothing ............................................................................................ SM ................ smsnatch.................................................................................................. SNH .............. snhsnorkel ................................................................................................ SNKL ............ snklsnubber................................................................................................ SNBR ............ snbrsocket.................................................................................................. SKT............... sktsocket head........................................................................................... SCH .............. SCHsocket welding ...................................................................................... SWLDG ......... SWLDGsoda fountain ........................................................................................ SDFTN .......... SDFTNsoftware............................................................................................... SFW .............. sfwsoil pipe............................................................................................... SP ................. SPsoil stack.............................................................................................. SSK............... SSKsolder .................................................................................................. SLDR ............ sldrsoldering.............................................................................................. SLDR ............ sldrsolenoid............................................................................................... SOL............... solsolenoid valve ....................................................................................... SOLV ............ SOLVsolid ................................................................................................... SOL............... solsolid body ............................................................................................ SB................. SBsolid fiberboard ..................................................................................... SFB............... SFB



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solid height ........................................................................................... SOLHGT ........SOLHGTsolid neutral .......................................................................................... SN.................SNsolid rocket ........................................................................................... SR .................SRsoluble................................................................................................. SLBL .............slblsolution................................................................................................ SOLN.............solnsolvent................................................................................................. SLVT.............slvtsonar ................................................................................................... SNR...............snrsonar control room.................................................................................. SONCR ..........SONCRsonar countermeasures and deception .......................................................... SONCM .........SONCMsonar narcelle (sonacelle) ......................................................................... SONAC ..........SONACsonobuoy.............................................................................................. SONB ............sonbsonoswitch............................................................................................ SONOSW .......sonoswsoot blower ........................................................................................... SB .................SBsorting, updating, report generating, etc. ...................................................... SURGE ..........SURGEsound .................................................................................................. SND ..............sndsound motion picture............................................................................... SMP ..............SMPsound navigation and ranging .................................................................... SONAR ..........SONARsound ranging........................................................................................ SR .................SRsound recorder-reproducer ........................................................................ SRR...............SRRsounder ................................................................................................ SDR...............sdrsounding .............................................................................................. SNDG ............sndgsounding machine................................................................................... SMACH .........SMACHsounding tube ........................................................................................ ST .................STsoundproof ........................................................................................... SNDPRF.........sndprfsource.................................................................................................. SCE ...............scesource control drawing ............................................................................ SOCD ............SOCDsource control number ............................................................................. SOCN ............SOCNsource [electron device] ........................................................................... S ...................SSouth................................................................................................... S ...................Sspace ................................................................................................... SP .................spspace heater .......................................................................................... SPH ...............SPHspacecraft ............................................................................................. SC .................scspacer.................................................................................................. SPCR .............spcrspanner ................................................................................................ SPNR.............spnrspare ................................................................................................... SP .................spspare part ............................................................................................. SP .................SPspark ................................................................................................... SPK ...............spkspark plug............................................................................................. SPPL..............SPPLspeaker ................................................................................................ SPKR.............spkrspecial ................................................................................................. SPCL .............SPCIspecial (comb form) ................................................................................ SP .................spspecial cleaning ..................................................................................... SPCLN...........SPCLNspecial common [projectile] ...................................................................... SPC ...............SPCspecial equipment................................................................................... SE .................SEspecial regulations .................................................................................. SR .................SRspecial screw......................................................................................... SPSCR ...........SPSCRspecial services ...................................................................................... SPS................SPSspecial shaped ....................................................................................... SPSHP ...........SPSHPspecial treatment steel ............................................................................. STS ...............STSspecial weapons ..................................................................................... SPLWPN ........SPLWPNspecial [projectile] .................................................................................. SP .................spspecial-purpose...................................................................................... SP .................SPspecific ................................................................................................ SP .................sp



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specific fuel consumption......................................................................... SFC............... SFCspecific gravity...................................................................................... SPGR............. SPGRspecific heat.......................................................................................... SPHT............. SPHTspecific impulse..................................................................................... SIMP ............. SIMPspecific volume ..................................................................................... SPVOL .......... SPVOLspecification ......................................................................................... SPEC............. specspecification control drawing .................................................................... SCD .............. SCDspecimen.............................................................................................. SPEC............. specspectral distribution ................................................................................ SD ................ SDspectrum analyzer .................................................................................. SA ................ SAspeed .................................................................................................. SP ................. spspeed converter ..................................................................................... SPCONV........ SPCONVspeed light............................................................................................ SPLT ............. SPLTspeed recorder ....................................................................................... SR................. SRspeed regulator ...................................................................................... SPREG........... SPREGspeedometer.......................................................................................... SPDOM.......... SPDOMspherical .............................................................................................. SPHER........... spherspherical cartridge .................................................................................. SPCTG........... SPCTGspider .................................................................................................. SPDR............. spdrspike ................................................................................................... SPK............... spkspin block ............................................................................................ SB................. SBspin-stabilized [rockets]........................................................................... SS ................. SSspindle ................................................................................................ SPDL............. spdlspiral................................................................................................... SPL ............... splsplash block.......................................................................................... SB................. SBsplashproof........................................................................................... SP ................. SPsplice .................................................................................................. SPLC............. splcsplice list.............................................................................................. SPL ............... SPLspline .................................................................................................. SPLN............. splnsplit ring .............................................................................................. SR................. SRsplit-phase............................................................................................ SPPH............. SPPHsplitter................................................................................................. SPLTR ........... spltrsplitting ............................................................................................... SP ................. spspool................................................................................................... SP ................. spspooling............................................................................................... SPG............... spgspot-face .............................................................................................. SF ................. SFspot-face other side................................................................................. SFO............... SFOspot-weld ............................................................................................. SW................ SWspotlight .............................................................................................. SLT............... sltsprayed acoustical ceiling......................................................................... SAC .............. SACsprayer ................................................................................................ SPYR............. spyrspraytight ............................................................................................. SPT ............... sptspreader ............................................................................................... SPRDR .......... sprdrspring.................................................................................................. SPR............... sprsprinkler .............................................................................................. SPR............... sprsprinkling............................................................................................. SPRG............. sprgsprocket ............................................................................................... SPRKT........... sprktsquadron .............................................................................................. SQN .............. sqnsquare ................................................................................................. SQ ................ sqsquare centimeter ................................................................................... SQCM ........... SQCMsquare foot ........................................................................................... SQFT............. SQFTsquare head .......................................................................................... SQH .............. SQHsquare inch ........................................................................................... SQIN ............. SQIN



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square kilometer..................................................................................... SQKM............SQKMsquare root............................................................................................ SQRT.............SQRTsquare wave .......................................................................................... SQW..............SQWsqueeze grip .......................................................................................... SQZGR ..........SQZGRsquirrel cage.......................................................................................... SQCG ............SQCGstabilization .......................................................................................... STBLN...........stblnstabilize ............................................................................................... STAB.............stabstabilized local oscillator .......................................................................... STALO...........STALOstabilized master oscillator........................................................................ STAMO..........STAMOstabilized shunt ...................................................................................... STSH .............STSHstabilizer .............................................................................................. STAB.............stabstable................................................................................................... STB ...............stbstack ................................................................................................... STK...............stkstage ................................................................................................... STG...............stgstainless ............................................................................................... STNLS ...........stnlsstainless steel ........................................................................................ SST ...............SSTstairway ............................................................................................... STWY............stwystake and platform .................................................................................. SP .................SPstamp .................................................................................................. STP ...............stpstanchion.............................................................................................. STAN.............stanstandard ............................................................................................... STD...............stdstandard instruction set ............................................................................ SIS ................SISstandard military drawing......................................................................... SMD..............SMDstandard nomenclature list ........................................................................ SNL...............SNLstandardization ...................................................................................... STDZN...........stdznstandby ................................................................................................ STBY.............stbystanding instruction................................................................................. SI ..................SIstanding-wave ratio [voltage] .................................................................... SWR..............SWRstandoff................................................................................................ STDF .............stdfstandpipe.............................................................................................. SP .................spstar epitaxial planar................................................................................. SEP ...............SEPstarboard .............................................................................................. STBD.............stbdstarboard side light ................................................................................. SSLT .............SSLTstart and stop ......................................................................................... STSP..............STSPstarter .................................................................................................. START...........startstarting ................................................................................................ STG...............stgstatement.............................................................................................. STMT ............stmtstateroom ............................................................................................. SR .................srstatic pressure........................................................................................ STPR .............STPRstatic self-verification .............................................................................. SSV ...............SSVstation ................................................................................................. STA...............stastation keeping lights............................................................................... SKLT.............SKLTstationary ............................................................................................. STA...............stastator ................................................................................................... STTR .............sttrstatuary bronze ...................................................................................... STBRZ...........STBRZstatus................................................................................................... STAT.............statsteady.................................................................................................. STDY.............stdysteam................................................................................................... ST .................ststeam engine direct-connected ................................................................... SEDC.............SEDCsteam generator...................................................................................... STGEN...........STGENsteam working pressure............................................................................ STWP ............STWPsteaming .............................................................................................. STMG ............stmgsteel .................................................................................................... STL ...............stl



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steel basement window............................................................................ SBW.............. SBWsteel cadmium plated .............................................................................. SCDP............. SCDPsteering................................................................................................ STRG ............ strgsteering gear dual emergency .................................................................... SGDE ............ SGDEsteering light ......................................................................................... STGLT........... STGLTstellite ................................................................................................. STLT............. stltstep-recovery diode ................................................................................ SRD .............. SRDstepdown ............................................................................................. STPDN .......... stpdnstepdown and stepup............................................................................... SDNSU .......... SDNSUstepper ................................................................................................ STPR............. stprstepup ................................................................................................. STU............... stustereophonic ......................................................................................... STEREO ........ stereosterilizer............................................................................................... STER............. sterstern diving .......................................................................................... STDVG.......... STDVGstern light............................................................................................. STLT............. STLTstern plane............................................................................................ STPL ............. STPLstiffener ............................................................................................... STIF .............. stifstill picture projector............................................................................... SPP ............... SPPstimulate .............................................................................................. STML ............ stmlstirrup ................................................................................................. STIR.............. stirstitch................................................................................................... STCH ............ stchstock ................................................................................................... STK............... stkstock number ........................................................................................ SNO .............. SNOstock number sequence listing ................................................................... SNSL............. SNSLstock order ........................................................................................... SO ................ SOstone ................................................................................................... STN............... stnstop order............................................................................................. SO ................ SOstopping............................................................................................... STPNG .......... stpngstorage ................................................................................................ STOR ............ storstorage address register............................................................................ SAR .............. SARstore.................................................................................................... ST................. ststoreroom............................................................................................. STRM............ strmstorm water .......................................................................................... STW.............. STWstove bolt ............................................................................................. SB................. SBstove rod.............................................................................................. SROD ............ SRODstowage ............................................................................................... STWG............ stwgstraight ................................................................................................ STR............... strstraight shank........................................................................................ SS ................. SSstraight thread [pipe couplings] ................................................................. NPSC............. NPSCstraight-line frequency............................................................................. SLF ............... SLFstraight-line wavelength........................................................................... SLWL............ SLWLstrainer ................................................................................................ STR............... strstrake .................................................................................................. STK............... stkstrand .................................................................................................. STRD ............ strdstranded............................................................................................... STRD ............ strdstrapped............................................................................................... STRP............. strpstrategic ............................................................................................... STRAT .......... stratstrategic missile ..................................................................................... SM ................ SMstratosphere .......................................................................................... STRATO ........ stratostream ................................................................................................. STR............... strstreamline ............................................................................................ STRLN .......... strlnstreet................................................................................................... ST................. ststrength ............................................................................................... STR............... str



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stress anneal.......................................................................................... SA.................SAstringer ................................................................................................ STGR.............stgrstrip .................................................................................................... STP ...............stpstrip-tin ................................................................................................ ST .................STstripped................................................................................................ STPD .............stpdstripper ................................................................................................ STPR .............stprstripping............................................................................................... STR ...............strstroboscope........................................................................................... STBSCP .........stbscpstroke .................................................................................................. STRK.............strkstrong .................................................................................................. STRG.............strgstrongback ............................................................................................ STRBK...........strbkstructural .............................................................................................. STRL .............strlstructural carbon steel, hard ...................................................................... SCSH.............SCSHstructural carbon steel, medium.................................................................. SCSM ............SCSMstructural carbon steel, soft ....................................................................... SCSS .............SCSSstructural clay tile................................................................................... SCT ...............SCTstructural glass....................................................................................... SG.................SGstructure............................................................................................... STRUCT.........structStubs Wire Gage .................................................................................... SWG..............SWGstudio-transmitter link ............................................................................. STL ...............STLstuffing ................................................................................................ STFG .............stfgstuffing box .......................................................................................... SB .................SBsubassembly.......................................................................................... SUBASSY ......subassysubcaliber............................................................................................. SUBCAL ........subcalsubcarrier authorization ........................................................................... SCA...............SCAsubject ................................................................................................. SUBJ .............subjsubmarine............................................................................................. SUB...............subsubmarine mine depot ............................................................................. SMD..............SMDsubmerged ............................................................................................ SUBMG .........submgsubmergence ......................................................................................... SUBMG .........submgsubmersible........................................................................................... SBM ..............sbmsubminiature ......................................................................................... SUBMIN ........subminsubsequent............................................................................................ SUBQ ............subqsubsoil drain.......................................................................................... SSD ...............SSDsubstation ............................................................................................. SUBSTA.........substasubstitute.............................................................................................. SUBST...........substsubstrate............................................................................................... SBSTR ...........sbstrsubstructure .......................................................................................... SUBSTR.........substrsubsystem............................................................................................. SS .................sssubtraction............................................................................................ SUBTR...........subtrsucceeding............................................................................................ SUC...............sucsuction................................................................................................. SUCT.............suctsudden ionospheric disturbance.................................................................. SID................SIDsufficient .............................................................................................. SUF ...............sufsuffix................................................................................................... SUFF .............suffsulfur trioxide chlorsulfonic acid................................................................ FS .................FSsummary .............................................................................................. SMY..............smysumming .............................................................................................. SUM..............sumsumming selector ................................................................................... SS .................SSsump tank............................................................................................. SMTK ............SMTKsunny .................................................................................................. SNY ..............snysupercharge........................................................................................... SPCHG...........spchgsuperheater ........................................................................................... SUPHTR.........suphtr



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superheterodyne..................................................................................... SUPERHET .... superhetsuperhigh frequency ............................................................................... SHF............... shfsuperimposed current .............................................................................. SUPCUR ........ SUPCURsuperintendent....................................................................................... SUPT............. suptsuperquick............................................................................................ SQ ................ SQsupersede ............................................................................................. SUPSD........... supsdsupersensitive........................................................................................ SUPSENS....... supsenssupersonic transport................................................................................ SST ............... SSTsuperstructure........................................................................................ SUPERSTR..... superstrsupervise.............................................................................................. SUPV ............ supvsupervision ........................................................................................... SPVN ............ spvnsupplement ........................................................................................... SUPPL ........... supplsupply ................................................................................................. SPLY............. splysupport ................................................................................................ SPRT............. sprtsupport equipment.................................................................................. SE................. SEsuppression........................................................................................... SUPPR........... supprsuppressor ............................................................................................ SUPPR........... supprsurface ................................................................................................ SURF............. surfsurface-to-air missile............................................................................... SAM.............. SAMsurface-to-surface missile......................................................................... SSM .............. SSMsurface-to-underwater missile ................................................................... SUM.............. SUMsurfaced or dressed four sides.................................................................... S4S ............... S4Ssurfaced or dressed one side...................................................................... S1S ............... S1Ssurfaced or dressed one side and one edge.................................................... S1S1E............ S1S1Esurfaced or dressed two sides .................................................................... S2S ............... S2Ssurge................................................................................................... SRG .............. srgsurgical................................................................................................ SURG ............ surgsurvey ................................................................................................. SURV ............ survsurvival ............................................................................................... SRVL ............ srvlsuspend ............................................................................................... SUSP............. suspsuspended acoustical-plaster ceiling............................................................ SAPC............. SAPCsuspended acoustical-tile ceiling ................................................................ SATC ............ SATCsuspended plaster ceiling ......................................................................... SPC............... SPCsuspended sprayed acoustical ceiling .......................................................... SSAC............. SSACsuspension............................................................................................ SPNSN........... spnsnsustaining............................................................................................. STNG ............ stngswage.................................................................................................. SWG ............. swgswamp glider ........................................................................................ SG ................ SGswash .................................................................................................. SW................ swswash bulkhead ..................................................................................... SWBHD ......... SWBHDsweat .................................................................................................. SWT.............. swtsweep.................................................................................................. SWP .............. swpsweep expand........................................................................................ SWPEXP........ SWPEXPsweep integrator .................................................................................... SWPINTEG .... SWPINTEGsweet dough.......................................................................................... SDGH............ SDGHswing .................................................................................................. SWG ............. swgswinging bracket.................................................................................... SWGBKT ....... SWGBKTswinging door ....................................................................................... SWGD ........... SWGDswitch ................................................................................................. SW................ swswitch rails ........................................................................................... SWR.............. SWRswitch stand.......................................................................................... SWS .............. SWSswitch ties ............................................................................................ SWT.............. SWTswitchband wound [relay] ........................................................................ SW................ SW



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switchboard .......................................................................................... SWBD............swbdswitchgear ............................................................................................ SWGR............swgrswitchgear block .................................................................................... SGB...............SGBswitchover ............................................................................................ SWOV ...........swovswivel.................................................................................................. SWVL............swvlsymbol................................................................................................. SYM..............symsymmetrical .......................................................................................... SYMM ...........symmsymposium ........................................................................................... SYMP ............sympsynchro switch....................................................................................... SSW ..............SSWsynchro tie ............................................................................................ SYNTI ...........SYNTIsynchronization bit ................................................................................. SB .................SBsynchronization indicator ......................................................................... SYNIND.........SYNINDsynchronize........................................................................................... SYNC ............syncsynchronizing lamp................................................................................. SYNLP...........SYNLPsynchronizing receptacle .......................................................................... SYNRECP ......SYNRECPsynchronous.......................................................................................... SYN ..............synsynchronous converter ............................................................................. SYNCCONV ...SYNCCONVsynchronous-orbiting communications ........................................................ SYNCOM .......SYNCOMsynchroscope......................................................................................... SYNSCP.........synscpsynthetic .............................................................................................. SYNTH ..........synthsyringe................................................................................................. SRNG ............srngsystem ................................................................................................. SYS ...............syssystem noise figure ................................................................................. SNF ...............SNFSysteme International d'Unites................................................................... SI ..................SI

Tt-bar [structural shape]............................................................................. T ...................Ttable lookup .......................................................................................... TLU...............TLUtable solution......................................................................................... TABSOL ........TABSOLtables of equipment................................................................................. TE .................TEtables of organization .............................................................................. TO.................TOtables of organization and equipment .......................................................... TOE...............TOEtabulate ................................................................................................ TAB .............. tabtabulator simulator.................................................................................. TABSIM.........TABSIMtachometer............................................................................................ TACH ............ tachtachometer voltmeter............................................................................... TVM..............TVMtackle .................................................................................................. TKL............... tkltactical................................................................................................. TAC .............. tactactical air navigation .............................................................................. TACAN..........TACANtactical data entry ................................................................................... TACDEN........TACDENtactical missile ....................................................................................... TM ................TMtactical range recorder ............................................................................. TRR...............TRRtail fuze................................................................................................ TFZ ...............TFZtail gate................................................................................................ TGT...............TGTtail gear................................................................................................ TG.................TGtail landing gear ..................................................................................... TLG...............TLGtail wind............................................................................................... TW................ twtailor ................................................................................................... TAL............... taltailpiece ............................................................................................... TLPC ............. tlpctailshaft................................................................................................ TLSFT ........... tlsfttally .................................................................................................... TLY............... tlytandem................................................................................................. TDM.............. tdmtangent................................................................................................. TAN .............. tan



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tank destroyer ....................................................................................... TD ................ TDtanker.................................................................................................. TKR .............. tkrtanker [aircraft]...................................................................................... K .................. ktanned ................................................................................................. TAN .............. tantape control unit..................................................................................... TCU .............. TCUtape core .............................................................................................. TC ................ TCtape distributor ...................................................................................... TDISTR ......... TDISTRtape drive ............................................................................................. TPDR ............ TPDRtape phase inverter ................................................................................. TPI................ TPItape-operated system............................................................................... TOS............... TOStape-pack ............................................................................................. TAPAK.......... TAPAKtaper ................................................................................................... TPR............... tprtaper pipe thread .................................................................................... NPT............... NPTtaper pipe thread [railing fixtures] .............................................................. NPTR ............ NPTRtaper shank ........................................................................................... TS................. TStappet .................................................................................................. TPT............... tpttapping ................................................................................................ TPG............... tpgtarget .................................................................................................. TGT .............. tgttarget designation transmitter .................................................................... TDT .............. TDTtarget doppler nullifier............................................................................. TDN .............. TDNtarget identification ................................................................................ TI.................. TItarget practice ....................................................................................... TP................. TPtarget practice with tracer......................................................................... TPT............... TPTtarpaulin .............................................................................................. TARP ............ tarptask parameter synthesizer........................................................................ TPS ............... TPStaxiway................................................................................................ TWY ............. twyteamwork ............................................................................................. TW................ twtechnical .............................................................................................. TECH ............ techtechnical ammunition.............................................................................. TAM ............. TAMtechnical bulletin.................................................................................... TB ................ TBtechnical circular.................................................................................... TC ................ TCtechnical control .................................................................................... TC ................ TCtechnical manual .................................................................................... TM................ TMtechnical note........................................................................................ TN ................ TNtechnical order....................................................................................... TO ................ TOtechnical report...................................................................................... TR ................ TRteeth.................................................................................................... T................... Ttelecommunications................................................................................ TELECOM ..... telecomtelegraph.............................................................................................. TLG .............. tlgTelegraph System .................................................................................. TS................. TStelemeter.............................................................................................. TLM.............. tlmtelemeter transmitter ............................................................................... TMX ............. TMXtelemetry.............................................................................................. TLMY............ tlmytelemetry processor module ...................................................................... TPM .............. TPMtelemotor ............................................................................................. TELMTR........ telmtrtelephone ............................................................................................. TEL............... teltelephone booth ..................................................................................... TELB............. TELBtelephone interference factor..................................................................... TIF................ TIFtelephone station .................................................................................... TEL............... TELtelephotograph ...................................................................................... TPHO ............ tphoteleprinter............................................................................................. TPR............... tprtelescope.............................................................................................. TLSCP ........... tlscpteletype................................................................................................ TT................. tt



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teletypewriter ........................................................................................ TTY............... ttyteletypewriter exchange ........................................................................... TWX..............TWXtelevision.............................................................................................. TV................. tvtelevision interference ............................................................................. TVI................TVItemper ................................................................................................. TEM .............. temtemperature........................................................................................... TEMP ............ temptemperature compensating ........................................................................ TC.................TCtemperature differential............................................................................ TD.................TDtemperature indicating controller................................................................ TIC................TICtemperature meter................................................................................... TM ................TMtemperature switch ................................................................................. TSW ..............TSWtemperature well .................................................................................... TW................TWtempered .............................................................................................. TMPD ............ tmpdtempered water ...................................................................................... TW................TWtempering ............................................................................................. TMPRG.......... tmprgtemplate ............................................................................................... TEMPL .......... templtemporary............................................................................................. TEMP ............ temptemporary construction hole...................................................................... TCH ..............TCHtenderizer ............................................................................................. TNDZR .......... tndzrtensile.................................................................................................. TNSL............. tnsltensile strength ...................................................................................... TS .................TStension................................................................................................. TNSN............. tnsntentative ............................................................................................... TNTV ............ tntvterminal ............................................................................................... TERM ............ termterminal block ....................................................................................... TBLK............. tblkterminal board ....................................................................................... TB.................TBterminal protective device ........................................................................ TPD...............TPDtermination ........................................................................................... TERMN.......... termnterneplate ............................................................................................. TRPL ............. trplterohmmeter.......................................................................................... TOHM ........... tohmterra cotta ............................................................................................. TC.................TCterrain-avoidance radar ............................................................................ TAR ..............TARterrain-clearance indicator ........................................................................ TCI................TCIterrazzo................................................................................................ TER............... terterrazzo base ......................................................................................... TERB.............TERBtertiary................................................................................................. TER............... tertest and evaluate..................................................................................... TE .................TEtest equipment ....................................................................................... TSTEQ...........TSTEQtest link................................................................................................ TLK...............TLKtest point .............................................................................................. TP .................TPtest specification [no number].................................................................... TSPEC ...........TSPECtest specification [number]........................................................................ TS .................TStest switch ............................................................................................ TSW ..............TSWtester ................................................................................................... TSTR ............. tstrtesting ................................................................................................. TSTG............. tstgtesting and popping................................................................................. TSPOP ...........TSPOPtesting device ........................................................................................ TD.................TDtetrachloride.......................................................................................... TET ............... tettetrafluorethylene ................................................................................... TETFLEYNE...tetfleynetetrode ................................................................................................. TET ............... tettextile .................................................................................................. TXTL............. txtlthat is .................................................................................................. IE.................. ietheoretical ............................................................................................ THEOR .......... theor



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theoretical point of fog ............................................................................ TPF ............... TPFtherm .................................................................................................. THM ............. thmthermal ................................................................................................ THRM ........... thrmthermal converter ................................................................................... THC .............. THCthermal demand transmitter ...................................................................... TDX .............. TDXthermal element ..................................................................................... TE................. TEthermistor............................................................................................. THMS............ thmsthermocouple ........................................................................................ TC ................ tcthermoid .............................................................................................. TH ................ ththermometer ......................................................................................... THERM ......... thermthermostat ............................................................................................ THERMO ....... thermothermostatic .......................................................................................... THRMSTC ..... thrmstcthick ................................................................................................... THK .............. thkthick film ............................................................................................. THKF ............ THKFthickener.............................................................................................. THKNR.......... thknrthicker................................................................................................. THKR............ thkrthickness.............................................................................................. THKNS.......... thknsthimble ................................................................................................ TMB.............. tmbthin film............................................................................................... TF................. TFthin-film transistor.................................................................................. TFT............... TFTthinner................................................................................................. TNR .............. tnrthird stage ............................................................................................ 3STG............. 3STGthread.................................................................................................. THD .............. thdthread both ends..................................................................................... TBE............... TBEthread cutting ........................................................................................ TC ................ TCthread for press-tight joints ....................................................................... NPSF ............. NPSFthread forming....................................................................................... TF................. TFthread one end....................................................................................... TOE .............. TOEthreaded neck........................................................................................ THDNK ......... THDNKthreadpiece ........................................................................................... THDPC .......... thdpcthree-conductor ..................................................................................... 3C................. 3Cthree-phase ........................................................................................... 3PH............... 3PHthree-pole............................................................................................. 3P ................. 3Pthree-pole double-throw........................................................................... 3PDT............. 3PDTthree-pole single-throw............................................................................ 3PST ............. 3PSTthree-stage............................................................................................ 3STG............. 3STGthree-way ............................................................................................. 3WAY ........... 3WAYthree-wire............................................................................................. 3W ................ 3Wthroat .................................................................................................. THRT ............ thrtthrottle ................................................................................................ THROT.......... throtthrottle reset.......................................................................................... TRST............. TRSTthrough................................................................................................ THRU............ thruthrower................................................................................................ THWR ........... thwrthrowout .............................................................................................. THWT ........... thwtthrust .................................................................................................. THR .............. thrthrust line............................................................................................. TL................. TLthrust shell............................................................................................ THRSHL ........ THRSHLthrust termination unit ............................................................................. TTU .............. TTUthyratron core driver ............................................................................... TCD .............. TCDthyratron motor control............................................................................ THYMOTROL THYMOTROLthyristor ............................................................................................... THYR............ THYRticket................................................................................................... TKT .............. TKTtie line ................................................................................................. TL................. TL



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tie plate................................................................................................ TP .................TPtight joints ............................................................................................ NPTF .............NPTFtight wrapped ........................................................................................ TW................TWtightening ............................................................................................. TTNG ............ ttngtile base ............................................................................................... TB.................TBtile block .............................................................................................. TB.................TBtile drain............................................................................................... TD.................TDtile floor ............................................................................................... TF .................TFtile threshold ......................................................................................... TT .................TTtile wainscot.......................................................................................... TW................TWtile-shingle roof ..................................................................................... TSR ...............TSRtiller .................................................................................................... TLR............... tlrtilting .................................................................................................. TLG............... tlgtimber.................................................................................................. TMBR............ tmbrtime and superquick ................................................................................ TSQ...............TSQtime compliance technical order................................................................. TCTO.............TCTOtime constant......................................................................................... TC.................TCtime delay............................................................................................. TD.................TDtime division multiplex ............................................................................ TDM..............TDMtime meter ............................................................................................ TIM ...............TIMtime of fail............................................................................................ TF .................TFtime of flight ......................................................................................... TMFL ............TMFLtime of rise ........................................................................................... TR.................TRtime of variation of gain........................................................................... TVG ..............TVGtime opening ......................................................................................... TO.................TOtime since new....................................................................................... TSN...............TSNtime since overhaul ................................................................................. TSO...............TSOtime switch ........................................................................................... TS .................TStime-delay closing .................................................................................. TDC ..............TDCtime-delay opening ................................................................................. TDO ..............TDOtimed................................................................................................... TMD.............. tmdtimed closing......................................................................................... TC.................TCtimer ................................................................................................... TMR.............. tmrtiming.................................................................................................. TMG.............. tmgtiming and telemetry ............................................................................... TT .................TTtinned .................................................................................................. TND .............. tndtobin bronze .......................................................................................... TOBBRZ ........TOBBRZtoboggan .............................................................................................. TOB .............. tobtoggle .................................................................................................. TGL............... tgltoilet ................................................................................................... T ................... ttoilet case ............................................................................................. TC.................TCtoilet-paper holder .................................................................................. TH.................THtolerance .............................................................................................. TOL............... toltone and alarm ....................................................................................... TNALM .........TNALMtone modulation ..................................................................................... TM ................TMtongue ................................................................................................. TNG .............. tngtongue and groove .................................................................................. TG.................TGtongueless ............................................................................................ TGLS............. tglstool steel .............................................................................................. TS .................TStoothed ring .......................................................................................... TR.................TRtop and bottom....................................................................................... TB.................TBtop and bottom bolt................................................................................. TBB...............TBBtop chord.............................................................................................. TC.................TC



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top of frame.......................................................................................... TFR............... TFRtopping ................................................................................................ TOPG ............ topgtorpedo ................................................................................................ TORP ............ torptorpedo batt .......................................................................................... TBATT .......... TBATTtorpedo group........................................................................................ TG ................ TGtorpedo part of beam............................................................................... TP................. TPtorque.................................................................................................. TRQ .............. trqtorque-differential receiver ....................................................................... TDR .............. TDRtorquemeter .......................................................................................... TORM ........... tormtorsiograph ........................................................................................... TORSIO ......... torsiotorsion................................................................................................. TRSN ............ trsntorsional............................................................................................... TORNL.......... tornltoss bomb computer................................................................................ TBC .............. TBCtotal .................................................................................................... TOT .............. tottotal dynamic head ................................................................................. TDH .............. TDHtotal harmonic distortion .......................................................................... THD .............. THDtotal indicator reading ............................................................................. TIR ............... TIRtotal load.............................................................................................. TLLD ............ TLLDtotal time.............................................................................................. TT................. TTtotal trim.............................................................................................. T................... Ttotalize ................................................................................................ TOTLZ .......... TOTLZtotalizing relay ...................................................................................... TOR .............. TORtotally enclosed ..................................................................................... TE................. TEtotally enclosed fan-cooled ....................................................................... TEFC............. TEFCtouchtone multifrequency......................................................................... TTMF ............ TTMFtowel rack or rod.................................................................................... TR ................ TRtower .................................................................................................. TWR ............. twrtrace.................................................................................................... TR ................ trtracer .................................................................................................. TRCR ............ trcrtracer number........................................................................................ TN ................ TNtrack ................................................................................................... TRK .............. trktrack data simulator ................................................................................ TDS............... TDStrack data storage ................................................................................... TDST............. TDSTtrack imitation ....................................................................................... TIM............... timtrack initiate.......................................................................................... TI.................. TItracking ............................................................................................... TRKG............ trkgtracking and guidance ............................................................................. TG ................ TGtracking radar input and correlation ............................................................ TRIC ............. TRICtracks per inch....................................................................................... TPI................ tpitrackway .............................................................................................. TRWA ........... TRWAtrade name............................................................................................ TRN .............. TRNtrade pattern.......................................................................................... TRP............... TRPtraffic .................................................................................................. TRFC............. trfctrailer .................................................................................................. TRLR ............ trlrtrailer mounted ...................................................................................... TLRMTD ....... TLRMTDtrailing ................................................................................................ TRG .............. trgtrailing edge.......................................................................................... TE................. TEtrailing edge radius ................................................................................. TER............... TERtrain.................................................................................................... TN ................ tntrainer ................................................................................................. TRNR ............ trnrtraining................................................................................................ TNG .............. tngtraining manual ..................................................................................... TM................ TMtrajectory ............................................................................................. TRAJ ............. traj



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transceiver ............................................................................................ XCVR ............xcvrtranscribe ............................................................................................. TRSCB........... trscbtranscriber ............................................................................................ TRSBR........... trsbrtranscribing........................................................................................... TRSBG........... trsbgtransducer............................................................................................. XDCR ............xdcrtransfer ................................................................................................ XFR...............xfrtransferred-electronlogic logic ................................................................... TEDL.............TEDLtransformer ........................................................................................... XFMR............xfmrtransistor .............................................................................................. XSTR.............xstrtransistor driver core memory.................................................................... TDCM............TDCMtransistor transistor logic .......................................................................... TTL ...............TTLtransistor under test................................................................................. TUT...............TUTtransistor voltmeter ................................................................................. TVM..............TVMtransistorized......................................................................................... TSTRZ ........... tstrztransition .............................................................................................. TRNSN .......... trnsntransitional testing [aircraft] ...................................................................... Y...................Ytranslator .............................................................................................. XLTR.............xltrtransmission.......................................................................................... XMSN............xmsntransmit................................................................................................ XMT..............xmttransmit gain control ............................................................................... TGC ..............TGCtransmit-receive ..................................................................................... TR.................TRtransmittal ............................................................................................ XMTL............xmtltransmittance......................................................................................... TRANS .......... transtransmitted............................................................................................ XMTD ...........xmtdtransmitter ............................................................................................ XMTR............xmtrtransmitter distributor .............................................................................. TD.................TDtransmitter receiver ................................................................................. TR.................TRtransmitting........................................................................................... XMTG ...........xmtgtransom................................................................................................ TR................. trtransparent............................................................................................ TRANS .......... transtransport vehicle..................................................................................... TV.................TVtransportable satellite communications link terminal ....................................... TSCLT ...........TSCLTtransportation ........................................................................................ TRANSP......... transptranspose .............................................................................................. TRNPS........... trnpstransposition ......................................................................................... TPSN ............. tpsntransverse ............................................................................................. TRANSV ........ transvtransverse electric................................................................................... TE .................TEtransverse electromagnetic........................................................................ TEM ..............TEMtransverse expansion joint ........................................................................ TEJ................TEJtransverse magnetic ................................................................................ TM ................TMtrapezoid .............................................................................................. TRAP............. traptrapped-plasma avalanche-triggered transit ................................................... TRAPATT ......TRAPATTtravel limit ............................................................................................ TRVLMT........TRVLMTtraveler ................................................................................................ TRVLR .......... trvlrtraveling............................................................................................... TRVLG .......... trvlgtraveling wave ....................................................................................... TW................TWtraveling-wave multiple-beam klystron........................................................ TWMBK.........TWMBKtraveling-wave tube ................................................................................ TWT..............TWTtraversing ............................................................................................. TRAV ............ travtread.................................................................................................... TRD .............. trdtreated ................................................................................................. TRTD............. trtdtreated hard-pressed fiberboard .................................................................. THPFB...........THPFBtreatment .............................................................................................. TRTMT .......... trtmt



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treble .................................................................................................. TRB .............. trbtriangle ................................................................................................ TRNGL.......... trngltributary............................................................................................... TRIB ............. tribtrick wheel ........................................................................................... TRKWHL....... TRKWHLtrigger ................................................................................................. TRIG ............. trigtriggering ............................................................................................. TRIG ............. trigtrigonometry ......................................................................................... TRIG ............. trigtrim after forming................................................................................... TAF............... TAFtrimmer ............................................................................................... TRMR ........... trmrtrinitrotoluene ....................................................................................... TNT .............. tnttriode .................................................................................................. TRI ............... tritrip coil................................................................................................ TC ................ TCtriple ................................................................................................... TPL............... tpltriple wall............................................................................................. TPLW............ tplwtriple-pole ............................................................................................ 3P ................. 3Ptriple-pole double-throw .......................................................................... 3PDT............. 3PDTtriple-pole double-throw switch ................................................................. 3PDTSW ........ 3PDTSWtriple-pole single-throw ........................................................................... 3PST ............. 3PSTtriple-pole single-throw switch .................................................................. 3PSTSW......... 3PSTSWtriple-pole switch ................................................................................... 3PSW ............ 3PSWtriple-throw .......................................................................................... 3T ................. 3Ttriplex ................................................................................................. TRX .............. trxtripped................................................................................................. TRP............... trptripping................................................................................................ TRP............... trptrolley ................................................................................................. TRLY ............ trlytroposphere........................................................................................... TROPO .......... tropotruck ................................................................................................... TRK .............. trktrue airspeed ......................................................................................... TAS............... TAStrue position.......................................................................................... TP................. TPtrue position tolerance ............................................................................. TPTOL........... TPTOLtrue profile ........................................................................................... TP................. TPtruncated whitworth coarse thread .............................................................. TWC ............. TWCtruncated whitworth fine thread ................................................................. TWF.............. TWFtruncated whitworth special thread ............................................................. TWS.............. TWStrunk ................................................................................................... TRK .............. trktrunnion............................................................................................... TRUN............ truntruss.................................................................................................... TR ................ trtruss head............................................................................................. TRH .............. TRHtube axial ............................................................................................. TBAX............ TBAXtube sheet............................................................................................. TS................. TStube sheet inlet and outlet head.................................................................. TSIOH ........... TSIOHtube under test ....................................................................................... TUT .............. TUTtubing.................................................................................................. TBG .............. tbgtumble................................................................................................. TMB.............. tmbtumbler................................................................................................ TBLR ............ tblrtune-controlled gain................................................................................ TCG .............. TCGtuned radio frequency.............................................................................. TRF............... TRFtuned-plate tuned-grid ............................................................................. TPTG............. TPTGtungsten............................................................................................... TUNG............ tungtuning.................................................................................................. TUN .............. tuntunnel.................................................................................................. TNL .............. tnltunnel diode.......................................................................................... TNLDIO......... TNLDIOtunnel-diode logic .................................................................................. TDL .............. TDL



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turbine ................................................................................................. TURB ............TURBturbine close coupled............................................................................... TCC...............TCCturbine direct......................................................................................... TD.................TDturbine driven ........................................................................................ TD.................TDturbine generator .................................................................................... TURBOGEN ...TURBOGENturbine inlet pressure ............................................................................... TIP ................TIPturbine inlet temperature .......................................................................... TIT................TITturbine reduction drive............................................................................. TRD ..............TRDturbo alternator ...................................................................................... TURBOALT....TURBOALTturbojet propulsion ................................................................................. TJP ................TJPturnbuckle ............................................................................................ TRNBKL ........ trnbklturned.................................................................................................. TRND ............ trndturning................................................................................................. TURN ............ turnturning gear .......................................................................................... TRNGR ..........TRNGRturning light .......................................................................................... TRNLT...........TRNLTturnout................................................................................................. TO................. toturntable............................................................................................... TRNTBL ........ trntblturret ................................................................................................... TUR .............. turtwin sideband ........................................................................................ TWSB ............TWSBtwist drill gage....................................................................................... TDG ..............TDGtwisted................................................................................................. TW................ twtwisted pair ........................................................................................... TWPR ............ twprtwo-conductor ....................................................................................... 2C .................2Ctwo-digit .............................................................................................. 2DIG..............2DIGtwo-phase............................................................................................. 2PH ...............2PHtwo-pole............................................................................................... DP.................DPtwo-pole double-throw ............................................................................ DPDT.............DPDTtwo-pole single-throw.............................................................................. DPST .............DPSTtwo-stage.............................................................................................. 2STG .............2STGtwo-way............................................................................................... 2WAY............2WAYtwo-wire .............................................................................................. 2W ................2Wtype mode series .................................................................................... TMS ..............TMStype-plate ............................................................................................. TYPL.............TYPLtypesetting ............................................................................................ TYPSTG......... typstgtypesetting lead...................................................................................... TSL ............... tsltypewriter............................................................................................. TW................ twtypical ................................................................................................. TYP............... typ

Uultimate................................................................................................ ULT...............ultultra-high frequency direction finding ......................................................... UHFDF ..........UHFDFultrahigh frequency................................................................................. UHF ..............UHFultrasonic frequency................................................................................ UF.................UFultraviolet ............................................................................................. UV ................uvultraviolet amplification by stimulated emission of radiation............................. UVASER ........UVASERultraviolet floodlight ............................................................................... UVFLT...........UVFLTumbilical .............................................................................................. UMB..............umbumbilical cord ....................................................................................... UMBC ...........UMBCunauthorized ......................................................................................... UNAUTHD .....unauthdunbleached ........................................................................................... UBL ..............ublunbleached muslin.................................................................................. UMUS............UMUSunclamp ............................................................................................... UNCLP ..........unclpuncoated .............................................................................................. UNCTD..........unctd



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unconditionally...................................................................................... UNCOND....... uncondundefined ............................................................................................. UNDEF.......... undefunder .................................................................................................. UND.............. undundercurrent ......................................................................................... UNDC............ undcunderfrequency...................................................................................... UNDF............ undfunderfrequency relay .............................................................................. UFR .............. UFRunderground ......................................................................................... UGND ........... ugndunderhatch ........................................................................................... UH ................ uhunderheat ............................................................................................. UHT .............. uhtunderload ............................................................................................. UNDLD ......... undldundersize ............................................................................................. US ................ usundervoltage ......................................................................................... UNDV ........... undvundervoltage device................................................................................ UVD.............. UVDunderwater ........................................................................................... UWTR ........... uwtrunderwater battery.................................................................................. UB ................ UBunderwater object locator ......................................................................... UOL .............. UOLunderwater team .................................................................................... UWTM .......... UWTMunderwater-to-air missile ......................................................................... UAM ............. UAMunderwater-to-surface missile ................................................................... USM.............. USMundetermined ........................................................................................ UNDETM....... undetmunfinished ............................................................................................ UNFIN........... unfinunfuzed ............................................................................................... UNF .............. unfunglazed ceramic mosaic tile .................................................................... UCMT ........... UCMTunglazed structural facing units ................................................................. USFU ............ USFUunglazed structural unit base ..................................................................... USUB ............ USUBunified................................................................................................. UN ................ UNUnified coarse thread .............................................................................. UNC.............. UNCUnified extra fine thread .......................................................................... UNEF ............ UNEFUnified fine thread ................................................................................. UNF .............. UNFunified S-band....................................................................................... USB .............. USBUnified special thread ............................................................................. UNS .............. UNSuniform ............................................................................................... UNIF ............. unifUniform System [lens marking]................................................................. US ................ USuniformity coefficient ............................................................................. UNIFCOEF..... UNIFCOEFunijunction transistor .............................................................................. UJT ............... UJTuninterruptible power supply .................................................................... UPS............... UPSunion .................................................................................................. UN ................ ununion bonnet ......................................................................................... UNB.............. UNBunit check ............................................................................................ UK ................ UKunit cooler ............................................................................................ UC ................ UCunit heater ............................................................................................ UH ................ UHunit under test ....................................................................................... UUT .............. UUTunit weight ........................................................................................... UWT ............. UWTUnited States......................................................................................... US ................ USUnited States Gage ................................................................................. USG .............. USGUnited States Pharmacopoeia .................................................................... USP............... USPuniversal .............................................................................................. UNIV............. univuniversal asynchronous receiver-transmitter ................................................. UART............ UARTuniversal product code ............................................................................ UPC .............. UPCunknown.............................................................................................. UNK.............. unkunless otherwise specified ........................................................................ UOS .............. UOSunlimited ............................................................................................. UNLIM .......... unlimunloading ............................................................................................. UNL .............. unl



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unlocking ............................................................................................. UNLKG..........unlkgunmarked ............................................................................................. UNMKD.........unmkdunmounted............................................................................................ UNMTD .........unmtdunregulated........................................................................................... UNRGLTD......unrgltdunsatisfactory material notice .................................................................... UMN .............UMNunsatisfactory report................................................................................ UR ................URunsensitized .......................................................................................... USTZD...........ustzdunsuppressed......................................................................................... UNSUPPR ......unsuppruntreated .............................................................................................. UTRTD ..........utrtduntreated hard-pressed fiberboard............................................................... UHPFB...........UHPFBuntwist................................................................................................. UNTW ...........untwupdraft................................................................................................. UPDFT...........updftupper................................................................................................... UPR...............uprupper and lower ..................................................................................... UL.................ULupper control limit .................................................................................. UCL ..............UCLupper sideband ...................................................................................... USB...............USBupright................................................................................................. URT ..............urtupward ................................................................................................ UPWD ...........upwdurinal................................................................................................... UR ................ururinal water closet .................................................................................. URWC ...........URWCUSA Standard ....................................................................................... USAS.............USASuse as required....................................................................................... UAR ..............UARused on ................................................................................................ UO ................UOused with.............................................................................................. UW................UWutensil ................................................................................................. UTN ..............utnutility .................................................................................................. UTIL..............utilutility binary dump ................................................................................. UBD ..............UBDutility room........................................................................................... UR ................URutilization ............................................................................................. UTIL..............utilutilization of enemy electromagnetic radiation............................................... UTEELRAD....UTEELRAD

Vvacant.................................................................................................. VAC ..............vacvacuum................................................................................................ VAC ..............vacvacuum induction melt-vacuum arc remelt ................................................... VIMVAR........VIMVARvacuum tube.......................................................................................... VT.................VTvacuum-tube voltmeter ............................................................................ VTVM ...........VTVMvalley .................................................................................................. VAL ..............valvalue ................................................................................................... VAL ..............valvalue engineering ................................................................................... VE.................VEvalve ................................................................................................... V...................vvalve box ............................................................................................. VB ................VBvalve seat ............................................................................................. VST...............VSTvalve stem ............................................................................................ VSTM ............VSTMvandyke ............................................................................................... VD ................vdvane axial ............................................................................................. VNXL ............VNXLvapor seal ............................................................................................. VS.................VSvaporize ............................................................................................... VPR...............vprvaporproof............................................................................................ VAPPRF.........vapprfvaportight............................................................................................. VT.................vtvar-hour meter ....................................................................................... VARHM.........VARHMvaractor................................................................................................ VRCTR ..........VRCTRvariable................................................................................................ VAR ..............var



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variable delivery .................................................................................... VDEL ............ VDELvariable floating point ............................................................................. VFLPT........... VFLPTvariable frequency.................................................................................. VF ................ VFvariable gain amplifier ............................................................................ VGA.............. VGAvariable resistor ..................................................................................... VARISTOR..... VARISTORvariable time (fuse)................................................................................. VT ................ VTvariable-control oil pressure...................................................................... VCOP ............ VCOPvariable-frequency clock.......................................................................... VFREQCLK.... VFREQCLKvariable-frequency oscillator..................................................................... VFO .............. VFOvariable-threshold logic ........................................................................... VTL .............. VTLvariable-voltage transformer ..................................................................... VARITRAN .... varitranvariance............................................................................................... VAR.............. varvariation .............................................................................................. VAR.............. varvariety................................................................................................. VRTY............ vrtyvarious ................................................................................................ VAR.............. varvaristor ................................................................................................ VRIS ............. vrisvarmeter .............................................................................................. VARM ........... varmvarnish ................................................................................................ VARN............ varnvarnished cambric [insul] ......................................................................... VC ................ VCvarying ................................................................................................ VRYG............ vrygvault door............................................................................................. VD ................ VDvegetable ............................................................................................. VEG .............. vegvehicle ................................................................................................ VEH .............. vehvellum................................................................................................. VEL .............. velvelocity ............................................................................................... VEL .............. velvelocity modulation ................................................................................ VM ............... VMvendor item control drawing ..................................................................... VICD............. VICDvent hole .............................................................................................. VH ................ VHvent pipe .............................................................................................. VP ................ VPvent stack............................................................................................. VS ................ VSventilate............................................................................................... VENT ............ ventventilating deadlight ............................................................................... VDL .............. VDLventilating equipment.............................................................................. VE ................ VEventilator ............................................................................................. VENT ............ ventverbatim .............................................................................................. VERB ............ verbverification ........................................................................................... VERIF ........... verifverify .................................................................................................. VRFY ............ vrfyvernier................................................................................................. VERN............ vernversatile ............................................................................................... VERST .......... verstversed sine ........................................................................................... VERS ............ versversus.................................................................................................. VS ................ vsvertex.................................................................................................. VTX .............. vtxvertical ................................................................................................ VERT ............ vertvertical (comb form) ............................................................................... V .................. vvertical and short takeoff and landing.......................................................... VSTOL .......... VSTOLvertical center line.................................................................................. VCL .............. VCLvertical centrifugal ................................................................................. VCE .............. VCEvertical impulse ..................................................................................... VIMP............. VIMPvertical ladder ....................................................................................... VL ................ VLvertical location of the center of buoyancy ................................................... VCB .............. VCBvertical location of the center of gravity....................................................... VCG.............. VCGvertical radial ........................................................................................ VTR .............. VTRvertical reference line.............................................................................. VRL .............. VRL



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Term Drawing Text


vertical takeoff and landing....................................................................... VTOL ............VTOLvertical volute spring suspension................................................................ VVSS.............VVSSvery high frequency ................................................................................ VHF ..............VHFvery high frequency direction finding.......................................................... VHFDF ..........VHFDFvery high frequency omnidirectional radio.................................................... VOR ..............VORvery high frequency omnirange localizer...................................................... VORLOC........VORLOCvery large-scale integration....................................................................... VLSI..............VLSIvery long range...................................................................................... VLR ..............VLRvery low altitude .................................................................................... VLA ..............VLAvery low frequency ................................................................................. VLF...............VLFvestibule .............................................................................................. VEST.............vestvestigial sideband ................................................................................... VSB...............VSBvestigial-sideband modulation ................................................................... VSM..............VSMvibrate ................................................................................................. VIB ...............vibvibration .............................................................................................. VIB ...............vibVickers hardness .................................................................................... VH ................VHvideo amplifier ...................................................................................... VIDAMP ........VIDAMPvideo display terminal ............................................................................. VDT ..............VDTvideo frequency ..................................................................................... VIDF .............VIDFvideo integration .................................................................................... VINT .............VINTvideo [adjective] .................................................................................... VID ...............vidvideo-tape recorder ................................................................................. VTR ..............VTRvillage ................................................................................................. VIL................VILviolet................................................................................................... V...................vviolet................................................................................................... VIO ...............vioviscometer ............................................................................................ VISMR...........vismrviscosity............................................................................................... VISC..............viscviscosity index....................................................................................... VI..................VIvisible ................................................................................................. VSBL.............vsblvisual .................................................................................................. VIS................visvisual aural radio range............................................................................ VARR ............VARRvisual flight rules.................................................................................... VFR...............VFRvisual glide slope.................................................................................... VGS ..............VGSvisual identification ................................................................................ VISID ............VISIDvital load center ..................................................................................... VLC ..............VLCvitreous................................................................................................ VIT................vitvitrified clay.......................................................................................... VC ................VCvitrified clay tile..................................................................................... VCT ..............VCTvoice ................................................................................................... VO ................vovoice coil ............................................................................................. VC ................VCvoice frequency ..................................................................................... VF.................VFvoice frequency carrier teletype ................................................................. VFCTT...........VFCTTvoice frequency telegraph......................................................................... VFTLG...........VFTLGvoice tube............................................................................................. VT.................VTvoice-actuated transmitter keyer inhibitor..................................................... ANTIVOX ......ANTIVOXvoice-operated device for automatic transmission........................................... VODAT..........VODATvoice-operated transmitter keyer ................................................................ VOX..............VOXvolt ..................................................................................................... V...................Vvolt per meter ........................................................................................ VM................VMvolt per mil ........................................................................................... VMIL.............VMILvolt-ohm milliammeter ............................................................................ VOM .............VOMvoltage control transfer ............................................................................ VCT ..............VCTvoltage detector ..................................................................................... VDET ............VDET



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August, 2003

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voltage drop.......................................................................................... VD ................ VDvoltage regulator .................................................................................... VR ................ VRvoltage relay ......................................................................................... VRLY............ VRLYvoltage standing-wave ratio ...................................................................... VSWR ........... VSWRvoltage-adjusting rheostat ........................................................................ VADJR .......... VADJRvoltage-controlled oscillator ..................................................................... VCO.............. VCOvoltage-tunable magnetron ....................................................................... VTM ............. VTMvoltage-variable capacitor ........................................................................ VVC.............. vvcvoltammeter.......................................................................................... VAM ............. vamvoltmeter ............................................................................................. VM ............... vmvoltmeter switch .................................................................................... VS ................ VSvolume ................................................................................................ VOL .............. volvolume indicator .................................................................................... VI ................. VIvolume of compartment ........................................................................... VC ................ VCvolume unit .......................................................................................... VU ................ VUvolumetric............................................................................................ VLMTRC ....... VLMTRCvolute.................................................................................................. VLT .............. VLTvulcanize ............................................................................................. VULC............ VULC

Wwafer .................................................................................................. WFR.............. wfrwagon ................................................................................................. WAG............. wagwagon box............................................................................................ WB ............... WBwainscot .............................................................................................. WA ............... wawaiting ................................................................................................ WTG ............. wtgwake light ............................................................................................ WKLT ........... WKLTwall hydrant.......................................................................................... WH ............... WHwall receptacle ...................................................................................... WR ............... WRwall vent .............................................................................................. WV ............... WVwallboard ............................................................................................. WLB ............. WLBwalseal ................................................................................................ WLSL............ WLSLwanigan............................................................................................... WAN............. wanwardrobe.............................................................................................. WRB ............. wrbwardroom............................................................................................. WR ............... wrwarehouse ............................................................................................ WHSE............ whsewarhead............................................................................................... WARHD ........ warhdwarming .............................................................................................. WM............... wmwarning ............................................................................................... WRN ............. wrnwarping ............................................................................................... WRPG ........... wrpgwarranty .............................................................................................. WARR ........... warrwash bucket.......................................................................................... WB ............... WBwash fountain........................................................................................ WF................ WFWashburn and Moen Gage ....................................................................... WMGA .......... WMGAwasher................................................................................................. WSHR ........... wshrwashing ............................................................................................... WSHG ........... wshgwashroom ............................................................................................ WR ............... wrwaste .................................................................................................. W.................. wwaste pipe ............................................................................................ WP................ WPwaste stack ........................................................................................... WS................ WSwater................................................................................................... WTR ............. wtrwater chiller.......................................................................................... WCHR ........... WCHRwater closet .......................................................................................... WC ............... WCwater cooler.......................................................................................... WCR ............. WCR



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August, 2003

Term Drawing Text


water fog.............................................................................................. WFG..............WFGwater heater .......................................................................................... WH................WHwater jacket .......................................................................................... WJ.................WJwater meter........................................................................................... WM ...............WMwater pump........................................................................................... WP ................WPwater round torpedo ................................................................................ WRT..............WRTwater surface......................................................................................... WS ................WSwater turbine ......................................................................................... WTURB .........WTURBwater turbine, closed-coupled .................................................................... WTCC............WTCCwater turbine, direct ................................................................................ WTD..............WTDwater-cooled ......................................................................................... WCLD ...........WCLDwaterline .............................................................................................. WL................wlwaterproof ............................................................................................ WTRPRF ........wtrprfwaterproof fan-cooled ............................................................................. WPFC ............WPFCwaterproof shroud .................................................................................. WPS ..............WPSwaterproofing........................................................................................ WPG..............wpgwatertight ............................................................................................. WTRTT..........wtrttwaterwall ............................................................................................. WW...............wwwaterwheel ........................................................................................... WWHL...........wwhlwatt..................................................................................................... W..................Wwatt demand meter ................................................................................. WDM.............WDMwatthour............................................................................................... WH................Whwatthour demand meter............................................................................ WHDM ..........WHDMwatthour demand meter, thermal type.......................................................... WHT..............WHTwatthour meter ...................................................................................... WHM.............WHMwatthour meter with contact device............................................................. WHC .............WHCwatthour meter with loss compensator ......................................................... WHL..............WHLwattmeter ............................................................................................. WM ...............wmwaveguide ............................................................................................ WG................wgwavelength ........................................................................................... WL................wlweakened plane joint............................................................................... WPJ...............WPJweapon ................................................................................................ WPN..............wpnweapon carrier ....................................................................................... WC................WCWeapon System ..................................................................................... WS ................WSwearing................................................................................................ WRG .............wrgweather ................................................................................................ WEA..............weaweather seal .......................................................................................... WSL ..............WSLweather stripping.................................................................................... WS ................WSweather-resistant .................................................................................... WR................WRweatherproof ......................................................................................... WTHPRF........wthprfweatherproof [insul]................................................................................ WP ................wpweathertight .......................................................................................... WEAT............weatwebbing ............................................................................................... WBG .............wbgwedge.................................................................................................. WG................wgweek ................................................................................................... WK................wkweight ................................................................................................. WT................wtweighting ............................................................................................. WTG..............wtgwelded................................................................................................. WLD..............wldwelder ................................................................................................. WLDR ...........wldrweldless ............................................................................................... WLDS............wldswest .................................................................................................... W..................Wwet bulb ............................................................................................... WB................WBwet process ........................................................................................... WP ................WP



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August, 2003

Term Drawing Text


wetted surface ....................................................................................... WS................ WSwhale boat............................................................................................ WB ............... WBwheel .................................................................................................. WHL ............. whlwheelbarrow ......................................................................................... WB ............... wbwheelbase ............................................................................................ WB ............... wbwheelhouse........................................................................................... WH ............... whwhistle ................................................................................................ WSTL............ wstlwhite................................................................................................... W.................. wwhite................................................................................................... WHT ............. whtwhite indicating lamp.............................................................................. WIL............... WILwhite light ............................................................................................ WL................ WLwhite phosphorus ................................................................................... WP................ WPwhite room ........................................................................................... WR ............... WRwhite scale ........................................................................................... WHS ............. WHSwhole depth .......................................................................................... WD ............... WDwide band ............................................................................................ WB ............... WBwide-area data service ............................................................................. WADS ........... WADSwide-area telecommunications service ........................................................ WATS............ WATSwidth .................................................................................................. WD ............... wdwidth across flats ................................................................................... WAF ............. WAFwildcat ................................................................................................ WLC ............. wlcwinch .................................................................................................. WN ............... wnwind direction ....................................................................................... WDIR ............ WDIRwind load ............................................................................................. WL................ WLwinder................................................................................................. WNDR........... wndrwinding ............................................................................................... WDG............. wdgwinding to winding................................................................................. WW............... wwwindlass............................................................................................... WNDLS ......... wndlswindow ............................................................................................... WDO............. wdowindow dimension ................................................................................. WD ............... WDwindow guard ....................................................................................... WG ............... WGwindow unit.......................................................................................... WU ............... WUwindshield............................................................................................ WSHLD ......... wshldwing chord plane ................................................................................... WCP.............. WCPwing reference line ................................................................................. WRL ............. WRLwinterize.............................................................................................. WTRZ............ wtrzwipe out............................................................................................... WO ............... WOwiping................................................................................................. WPG ............. wpgwire (comb form) ................................................................................... W.................. wwire assembly ....................................................................................... WA ............... WAwire gage ............................................................................................. WG ............... WGwire glass............................................................................................. WGL ............. WGLwire list ............................................................................................... WL................ WLwire mesh ............................................................................................ WM............... WMwire rope.............................................................................................. WR ............... WRwire schedule ........................................................................................ WS................ wswire-bound ........................................................................................... WBD ............. WBDwire-wound .......................................................................................... WW............... WWwireway............................................................................................... WW............... wwwiring ................................................................................................. WRG ............. wrgwiring around frame ............................................................................... WAF ............. WAFwith (comb form) ................................................................................... W.................. Wwith blowout......................................................................................... WBO ............. WBO



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Term Drawing Text


with equipment and spare parts .................................................................. WESP ............WESPwithdrawn ............................................................................................ WD................WDwithout ................................................................................................ WO................WOwithout blowout ..................................................................................... WOBO ...........WOBOwithout equipment and spare..................................................................... WOESP ..........WOESPwood awning-type window....................................................................... WATW...........WATWwood base ............................................................................................ WB................WBwood block floor .................................................................................... WBF..............WBFwood blocking....................................................................................... WBL..............WBLwood boring.......................................................................................... WDBOR.........WDBORwood casement window ........................................................................... WCW.............WCWwood door ............................................................................................ WD................WDwood door and frame .............................................................................. WDF..............WDFwood furring strips ................................................................................. WFS ..............WFSwood jalousie ........................................................................................ WJ.................WJwood panel ........................................................................................... WDP..............WDPwood pattern ......................................................................................... WP ................WPwood threshold ...................................................................................... WT................WTwood-shingle roof .................................................................................. WSR..............WSRwoodcutting .......................................................................................... WCTG ...........wctgwooden box [ammo] ............................................................................... WBX .............WBXwoodruff .............................................................................................. WDF..............wdfword buffer register ................................................................................ WBR..............WBRword combiner and multiplexer ................................................................. WCM.............WCMword processing ..................................................................................... WP ................WPwork line.............................................................................................. WL................WLworkbench............................................................................................ WB................wbworking circle ....................................................................................... WC................WCworking point ........................................................................................ WP ................WPworking pressure.................................................................................... WPR..............WPRworking steam pressure............................................................................ WSP ..............WSPworking voltage ..................................................................................... WV................WVworkshop ............................................................................................. WKS..............wksworkshop assembly [torpedo].................................................................... WA................WAworkshop unit [torpedo]........................................................................... WU................WUworm gear ............................................................................................ WMGR...........WMGRwormshaft ............................................................................................ WMSFT .........wmsftwormwheel ........................................................................................... WMWHL........wmwhlwound ................................................................................................. WND .............wndwrecker................................................................................................ WRK .............wrkwrecking .............................................................................................. WRK .............wrkwrench................................................................................................. WR................wrwringer ................................................................................................ WRGR ...........wrgrwrist pin............................................................................................... WSTPN ..........WSTPNwritable control store............................................................................... WCS..............WCSwriter .................................................................................................. WR................wrwrong direction...................................................................................... WRDIR ..........WRDIRwrought ............................................................................................... WRT..............wrtwrought brass ........................................................................................ WBRS............WBRSwrought iron ......................................................................................... WI.................WIwrought steel......................................................................................... WS ................WS

Y



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Term Drawing Text


yard .................................................................................................... YD ................ ydyear .................................................................................................... YR ................ yryellow ................................................................................................. Y .................. yyellow ................................................................................................. YEL .............. yelyellow indicating lamp ............................................................................ YIL ............... YILyellow light .......................................................................................... YLT .............. YLTyellow varnished cambric [insul] ............................................................... YVC.............. WCyield point ............................................................................................ YP ................ YPyield strength ........................................................................................ YS ................ YS

Zzero adjusted......................................................................................... ZA ................ ZAzero temperature coefficient...................................................................... ZTC............... ZTC



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August, 2003


2.0 Abbreviations in Alphabetical Order Based on the Drawing Abbreviation

Drawing Text Term

1 RED ................. 1 red....................first reduction1 STG.................. 1 stg ....................first stage1/2DP.................. 1/2dp ...................half dog point1/2H.................... 1/2h.....................half-hard1/2RD ................. 1/2rd ...................half-round1C ...................... 1c .......................single conductor2C ...................... 2C ...................... two-conductor2DIG................... 2DIG................... two-digit2PH .................... 2PH..................... two-phase2STG .................. 2STG................... two-stage2W ..................... 2W...................... two-wire2WAY................. 2WAY ................. two-way3C ...................... 3C ...................... three-conductor3P....................... 3P....................... three-pole3P....................... 3P....................... triple-pole3PDT .................. 3PDT................... three-pole double-throw3PDT .................. 3PDT................... triple-pole double-throw3PDTSW.............. 3PDTSW.............. triple-pole double-throw switch3PH .................... 3PH..................... three-phase3PST................... 3PST ................... three-pole single-throw3PST................... 3PST ................... triple-pole single-throw3PSTSW .............. 3PSTSW .............. triple-pole single-throw switch3PSW.................. 3PSW .................. triple-pole switch3STG .................. 3STG................... third stage3STG .................. 3STG................... three-stage3T ...................... 3T....................... triple-throw3W ..................... 3W...................... three-wire3WAY................. 3WAY ................. three-way4/C ..................... 4/c ......................four-conductor4D ...................... 4d .......................four-dimensional4P....................... 4p .......................four pole4PDTSW.............. 4PDTSW..............four pole double throw switch4PSTSW .............. 4PSTSW ..............four-pole single-throw switch4PSW.................. 4PSW ..................four pole switch4STG .................. 4STG...................four-stage4STG .................. 4STG...................fourth stage4W ..................... 4W......................four-wire4WAY................. 4WAY .................four-way

AA........................ A ........................anode [electron device]A........................ a.........................anti (comb form)A........................ a.........................astragalAA ..................... aa .......................air-to-airAA ..................... AA......................antiaircraftAA ..................... AA......................arithmetic averageAA ..................... AA......................armature acceleratorAAA ................... AAA ...................antiaircraft artilleryAAC ................... AAC ...................acquisition advice codeAAC ................... AAC ...................antiaircraft commonAAFC ................. AAFC..................antiaircraft fire control



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August, 2003

Drawing Text Term


AAI .................... AAI .................... air-to-air identificationAAL ................... AAL ................... aircraft approach lightAAM .................. AAM .................. air-to-air-missileAAN................... AAN ................... advance alteration noticeAAO................... aao...................... antiair outputAASD ................. AASD ................. antiaircraft self-destroyingAB ..................... AB ..................... adapter boosterAB ..................... ab ....................... afterburnerAB ..................... ab ....................... air blastAB ..................... AB ..................... anchor boltABAR................. ABAR ................. advanced battery acquisition radarABBR ................. abbr .................... abbreviateABC ................... ABC ................... automatic brightness controlABCB ................. ABCB ................. air blast circuit breakerABCP ................. ABCP.................. automatic bias compensationABDNSHP........... abdnshp ............... abandon shipABL ................... abl ...................... above baselineABN ................... abn ..................... airborneABNL ................. abnl .................... abnormalABRSV ............... abrsv ................... abrasiveABRSVRES ......... abrsvres ............... abrasive-resistantABS ................... abs...................... absoluteABSC ................. ABSC.................. automatic bass compensationABSCLG ............. absclg.................. absolute ceilingABSORB............. absorb ................. absorptionABSTR ............... abstr.................... abstractABSW ................ absw ................... air-break switchABT ................... abt ...................... aboutABT ................... ABT.................... air blast transformerABV ................... abv ..................... aboveABWC ................ ABWC ................ automatic bandwidth controlAC ..................... AC ..................... aerodynamic centerAC ..................... AC ..................... alternating currentAC ..................... AC ..................... asbestos cementAC ..................... ac ....................... air conditioningACB ................... ACB ................... air circuit breakerACB ................... ACB ................... asbestos-cement boardACC ................... acc...................... accumulatorACCEL ............... accel ................... accelerateACCESS.............. access.................. accessoryACCLRM ............ acclrm ................. accelerometerACCOM .............. accom.................. accommodateACCT ................. acct..................... accountACCUM .............. accum.................. accumulateACCUR............... accur ................... accurateACDT ................. acdt..................... accidentACE ................... ACE.................... automatic checkout equipmentACET ................. acet..................... acetyleneACFT.................. acft ..................... aircraftACG ................... acg...................... angiocardiogramACIRC................ acirc.................... air circulatingACK ................... ack...................... acknowledgeACKTX............... ACKTX............... automatic circuit exchange



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August, 2003

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ACLD ................. acld .....................air-cooledACLE.................. ACLE..................automatic clutter eliminatorACLTR................ acltr.....................acceleratorACM................... ACM...................asbestos-covered metalACN ................... ACN ...................advance change noticeACO ................... aco......................action cutoutACPT.................. acpt .....................acceptACPTR................ acptr ....................acceptorACQ ................... acq......................acquireACQ ................... acq......................acquisitionACR ................... acr ......................acrossACRFLT.............. ACRFLT..............across flatsACRS.................. ACSR..................aluminum conductor steel-reinforcedACRYL ............... acryl....................acrylicACS.................... acs ......................accessACS.................... ACS ....................accumulator switchACS.................... ACS ....................alternating current synchronousACST.................. ACST ..................access timeACST.................. acst .....................acousticACT.................... act.......................activityACT.................... ACT....................algebraic compiler and translatorACTE.................. acte .....................actuateACTG ................. actg .....................actuatingACTL.................. actl......................actualACTN ................. actn .....................actionACTR ................. actr .....................actuatorACTT.................. actt......................acetateACTVNANAL ...... actvnanal ..............activation analysisACTVT ............... actvt ....................activateACTVTR ............. actvtr ...................activatorACV ................... ACV ...................alarm check valveACW................... acw .....................aircraft control and warningAD ..................... ad .......................advertisementAD ..................... AD......................ampere demand meterAD ..................... ad .......................analog-to-digitalAD ..................... ad .......................anodeAD ..................... AD......................area drainAD ..................... AD......................as drawnADAPT ............... adapt ...................adaptationADC ................... ADC ...................air data computingADC ................... ADC ...................analog-to-digital converterADD ................... add......................addendumADD ................... add......................additionADDL ................. addl.....................additionalADDT ................. addt.....................additiveADF.................... ADF....................automatic direction finderADH ................... adh......................adhereADH ................... adh......................adhesiveADJ .................... adj ......................adjacentADJ .................... adj ......................adjustADJSP................. adjsp ...................adjustable speedADMG ................ admg ...................admittingADMIN ............... admin ..................administer



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August, 2003

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ADP ................... ADP.................... automatic data processingADPTR ............... adptr ................... adapterADRS ................. adrs..................... addressADS ................... ADS.................... automatic door sealADSORB............. adsorb ................. adsorbentADT ................... ADT ................... average daily trafficADV................... adv ..................... advanceADVSY............... advsy .................. advisoryAE ..................... AE...................... air escapeAE ..................... ae ....................... armament and electronicsAECP.................. AECP.................. advance engineering change proposalAEG ................... AEG ................... active element groupAEI .................... AEI..................... average efficiency indexAEO ................... AEO ................... advance engineering orderAER ................... AER.................... after engine roomAERO ................. aero .................... aeronauticAERODYN .......... aerodyn................ aerodynamicAEROL ............... aerol.................... aerologicalAEW .................. AEW................... airborne early warningAF...................... AF...................... audio frequencyAFB ................... AFB.................... antifriction bearingAFC ................... AFC.................... automatic frequency controlAFCE.................. AFCE.................. automatic flight control equipmentAFCS.................. AFCS.................. Adaptive Flight Control SystemsAFCS.................. AFCS.................. Adoptive Flight Control SystemAFCS.................. AFCS.................. Automatic Flight Control SystemAFM................... AFM ................... antifriction metalAFR ................... afr ...................... airframeAFS.................... AFS .................... Arming and Fusing SystemAFT.................... aft....................... afterAFTCLR ............. AFTCLR.............. after coolerAG ..................... ag ....................... agitateAG ..................... AG ..................... air-to-groundAG ..................... AG ..................... armor gratingAGC ................... AGC ................... automatic gain controlAGCA................. AGCA................. automatic ground-controlled approachAGCL ................. AGCL ................. automatic ground-controlled landingAGDS ................. AGDS ................. American Gage Design StandardAGE ................... AGE ................... aerospace ground equipmentAGGR................. aggr .................... aggregateAGMT ................ agmt.................... augmentAGT ................... agt ...................... agentAGT ................... AGT ................... aviation gas turbineAH ..................... ah ....................... air over hydraulicAH ..................... ah ....................... antihuntAHDR................. ahdr .................... air headerAHM .................. AHM .................. ampere-hour meterAHR ................... ahr ...................... anchorAI ...................... AI....................... air installationsAI ...................... AI....................... airborne interceptorAI ...................... AI....................... airspeed indicatorAI ...................... ai........................ antiicingAIC .................... AIC .................... ammunition identification code



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August, 2003

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AIL..................... ail .......................aileronAILAS................. AILAS.................Automatic Instrument Landing Approach SystemAILS................... AILS ...................Automatic Instrument Landing SystemAINDTN.............. AINDTN..............air inductionAIRCLNR............ AIRCLNR ............air cleanerAIRCOND ........... aircond.................air-conditionAIRSHTR ............ AIRSHTR.............air shutterAIV .................... AIV.....................armored infantry vehicleAJ ...................... aj ........................antijammingAJ ...................... AJ.......................assembly jigAL...................... AL ......................air lockAL...................... AL ......................aluminumAL...................... AL ......................amber lightAL...................... AL ......................application listALC.................... alc.......................alcoholALC.................... ALC....................automatic level controlALCD ................. alcd .....................alcladALD ................... ALD....................at a later dateALDD ................. aldd.....................alidadeALG ................... alg ......................algebraALGO ................. algo.....................algorithmALGOL ............... ALGOL ...............algorithmic-oriented languageALIGN ................ align....................alignmentALK ................... alk ......................alkalineALKY ................. alky.....................alkalinityALLOC ............... alloc ....................allocateALLOW .............. allow ...................allowanceALM................... alm .....................alarmALPHA ............... alpha ...................alphabeticalALT.................... alt .......................alternationALT.................... alt .......................altitudeALTE.................. alte......................altitude transmitting equipmentALTM................. altm.....................altimeterALTN ................. altn .....................alternateALTNTR ............. altntr ...................alternatorALTNV ............... altnv....................alternativeALTRD ............... altrd ....................alteredALTRN ............... altrn ....................alterationALU ................... alu ......................arithmetic and logic unitALY ................... aly ......................alloyAM..................... am ......................amatolAM..................... AM .....................amplitude modulationAM..................... am ......................anti meridiem (before noon)AMA................... AMA...................automatic message accountingAMAD ................ AMAD ................airframe-mounted accessory driveAMB................... amb.....................amberAMB................... amb.....................ambientAMB................... amb.....................ambulanceAMB................... amb.....................antimotorboatAMB................... amb.....................asbestos millboardAMC................... AMC...................automatic mixture controlAMD................... AMD...................air movement dataAMEND .............. amend..................amendment



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August, 2003

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AMER ................ Amer................... AmericanAMLG ................ amlg.................... amalgamAMM.................. amm.................... ammeterAMM.................. AMM.................. antimissile missileAMMO ............... ammo.................. ammunitionAMMORK........... AMMORK ........... ammunition rackAMNA................ amna ................... ammoniaAMNIT ............... amnit................... ammonium nitrateAMNSWP............ AMNSWP............ acoustic mine sweepingAMOHST ............ AMOHST ............ ammunition hoistAMOHSTDR........ AMOHSTDR........ ammunition hoist driveAMOS ................ AMOS................. automatic meteorological observing stationAMP................... amp .................... ampereAMPH ................ amph................... amphibianAMPH ................ amph................... amphibiousAMPHR .............. amphr.................. ampere-hourAMPHTRK .......... amphtrk ............... amphibious truckAMPL................. ampl.................... amplifierAMPLDN ............ ampldn ................ amplidyneAMPLG............... AMPLG............... amplidyne generatorAMPLMG............ AMPLMG............ amplidyne motor generatorAMPTD............... amptd .................. amplitudeAMR .................. AMR................... advance material requestAMS................... AMS ................... aeronautical material specificationAMT................... amt ..................... amountAMTB ................ AMTB................. antimotor torpedo boatAMTI.................. AMTI.................. area moving target indicatorAMTI.................. AMTI.................. automatic moving-target indicatorAMUN................ amun................... air munitionsAN ..................... AN ..................... Air Force-NavyAN ..................... AN ..................... Army-NavyANA................... ANA ................... Air Force-Navy AeronauticalANAF ................. ANAF ................. Army-Navy-Air ForceANAL................. anal..................... analysisANALY............... analy ................... analyzeANB ................... ANB ................... Army-Navy BritishANC ................... ANC ................... Air Force-Navy-CivilANC ................... ANC ................... all-number callingANC ................... ANC ................... Army-Navy CommercialANCFIL .............. ANCFIL .............. anchored filamentANCG................. ancg .................... announcingANCH................. anch .................... anechoicAND................... AND ................... Air Force-Navy DesignAND................... AND ................... Army-Navy DesignANDZ................. andz .................... anodizeANHYD .............. anhyd .................. anhydrideANHYD .............. nhyd.................... anhydrousANI .................... ANI .................... automatic number identificationANL ................... anl ...................... annealANL ................... ANL ................... automatic noise limiterANLG................. anlg .................... analogANLOR............... ANLOR............... angle orderANLR ................. anlr ..................... angular



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August, 2003

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ANLR ................. anlr .....................annularANLT ................. anlt .....................anchor lightANN ................... ann......................annunciatorANO ................... ANO ...................alphanumeric outputANPT.................. ANPT..................aeronautical national taper pipe threadANS.................... ans ......................answerANT ................... ant ......................antennaANTILOG............ antilog .................antilogarithmANTIVOX ........... ANTIVOX............voice-actuated transmitter keyer inhibitorANTOX............... antox ...................antitoxinANTSPT.............. antspt...................antisepticAO ..................... AO......................access openingAO ..................... AO......................air overAOC ................... AOC ...................automatic output controlAOQ ................... AOQ ...................average outgoing qualityAOQL ................. AOQL .................average outgoing quality limitAOR ................... aor ......................anchor orderAOVC................. AOVC .................automatic overload circuitAP ...................... AP ......................access panelAP ...................... ap .......................acidproofAP ...................... AP ......................after peakAP...................... AP ......................after perpendicularAP ...................... AP ......................air passageAP...................... AP ......................argument programmingAP...................... AP ......................armor-piercingAPA.................... APA....................axial pressure angleAPC.................... APC ....................acoustical plaster ceilingAPC.................... APC ....................armored personnel carrierAPC.................... APC ....................armor-piercing-cappedAPC.................... APC ....................automatic phase controlAPCI................... APCI ...................armor-piercing-capped incendiaryAPCIT................. APCIT .................armor-piercing-capped incendiary with tracerAPERS ................ APERS ................antipersonnelAPERT................ apert ....................apertureAPF .................... APF ....................acidproof floorAPI..................... API .....................air-position indicatorAPI..................... API .....................armor-piercing-incendiaryAPIS ................... APIS ...................array processing instruction setAPIT................... APIT ...................armor-piercing-incendiary with tracerAPL .................... APL ....................a programming languageAPL .................... apl ......................airplaneAPL .................... APL ....................allowance parts listAPL .................... APL ....................automatic phase lockAPLD.................. apld.....................appliedAPLQ.................. aplq.....................appliqueAPOTH ............... apoth ...................apothecaryAPP .................... app......................appearanceAPPAR................ appar ...................apparatusAPPL .................. appl.....................applicationAPPROX ............. approx .................approximateAPPV.................. appv ....................approveAPPVL................ appvl ...................approvalAPPX.................. appx ....................appendix



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August, 2003

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APR ................... Apr ..................... AprilAPRCH ............... aprch................... approachAPRNT ............... aprnt ................... apparentAPRT.................. aprt ..................... airportAPSR.................. APSR.................. airport surveillance radarAPT.................... apt ...................... apartmentAPT.................... APT.................... armor-piercing-with tracerAPU ................... APU.................... auxiliary power unitAPVD ................. apvd.................... approvedAPW................... APW................... architectural projected windowAQ ..................... aq ....................... aqueousAQL ................... AQL ................... acceptable quality levelAQT ................... AQT ................... acceptable quality testAR ..................... AR ..................... acid-resistingAR ..................... AR ..................... as requiredAR ..................... AR ..................... assembly and repairARB ................... arb ...................... arbitraryARCCOS............. arccos.................. arccosineARCCOS............. arccos.................. inverse cosineARCCOT............. arccot .................. arccotangentARCCOT............. arccot .................. inverse cotangentARCCSE ............. arccse .................. arccosecantARCCSE ............. arccse .................. inverse cosecantARCH................. arch .................... architectureARCH................. arch .................... archiveARCSEC ............. arcsec .................. arcsecantARCSEC ............. arcsec .................. inverse secantARCSIN .............. arcsin .................. arcsineARCSIN .............. arcsin .................. inverse sineARCTAN............. arctan .................. arctangentARCTAN............. arctan .................. inverse tangentARCW ................ arcw.................... arc weldARG ................... arg ...................... arresting [gear or hook]ARITH................ arith .................... arithmeticARITHU.............. arithu .................. arithmetic unitARL ................... ARL.................... acceptable reliability levelARM .................. arm ..................... armatureARM .................. arm ..................... armingARMCA .............. armca .................. armored cableARMD ................ armd ................... armoredARMPL............... armpl .................. armor plateARMSHT ............ armsht ................. armature shuntARMT ................ armt .................... armamentARNG................. arng .................... arcingAROM ................ arom ................... aromaticARP ................... ARP.................... aeronautical recommended practiceARP ................... ARP.................... analytical rework programARR ................... ARR ................... antirepeat relayARR ................... arr ...................... arrangeARS ................... ars ...................... arsineARS ................... ARS.................... asbestos roof shinglesARSR ................. arsr ..................... arresterART ................... art....................... article



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August, 2003

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ARTCC ............... ARTCC................air route traffic control centerARTCLD ............. artcld ...................articulatedARTF.................. artf......................artificialARTRON............. artron...................artificial neutronARTY ................. arty .....................artilleryAS...................... as........................airscoopAS...................... as........................airspeedAS...................... AS ......................ammeter switchAS...................... AS ......................antisubmarineASAP.................. ASAP ..................as soon as possibleASB.................... asb ......................asbestosASC.................... ASC ....................automatic sensitivity controlASC.................... ASC ....................auxiliary switch [breaker] normally closedASCII.................. ASCII ..................American National Standard Code for Information InterchangeASEC.................. ASEC ..................American Standard Elevator CodeASG.................... ASG....................aeronautical standards groupASGMT............... asgmt...................assignmentASGN ................. asgn ....................assignASHOF................ ASHOF................air shutoffASM ................... ASM ...................air-to-surface missileASM ................... asm .....................assemble [auto manufacturing]ASN.................... ASN....................average sample numberASO.................... ASO....................auxiliary switch [breaker] normally openASPH.................. asph ....................asphaltASPHPF .............. asphpf..................asphalt-plank floorASPHRS.............. asphrs ..................asphalt roof shinglesASPP .................. ASPP...................alloy-steel protective platingASPRTR.............. asprtr ...................aspiratorASR.................... ASR ....................airborne surveillance radarASRT.................. asrt......................assortASSEM ............... assem ..................assembleASSN.................. assn.....................associationASSOC................ assoc ...................associateASST .................. asst .....................assistantASSTN................ asstn....................assistanceASSY.................. assy.....................assemblyASTIG................. astig ....................astigmatismASTN.................. astn .....................asternASTRG................ ASTRG................air startingASTROPHYS ....... astrophys ..............astrophysicsASV.................... ASV....................angle stop valveASW................... ASW ...................antisubmarine warfareASW................... ASW ...................auxiliary switchASWG................. ASWG.................American Steel Wire GageASYM................. asym ...................asymmetricASYMP ............... asymp..................asymptoteAT...................... at ........................action timeAT...................... at ........................airtightAT...................... at ........................ampere [turn]AT...................... AT ......................antitankAT...................... at ........................atomic (comb form)ATB.................... ATB....................asphalt-tile baseATC.................... ATC....................acoustical tile ceiling



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August, 2003

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ATC ................... ATC.................... air traffic controlATCH ................. atch..................... attachATCH ................. atch..................... attachmentATCK ................. atck..................... attackATE.................... ATE.................... automatic test equipmentATF.................... ATF.................... asphalt-tile floorATH ................... ath ...................... athwartshipATI .................... ATI..................... average total inspectionATM................... atm ..................... air turbine motorATM................... atm ..................... atmosphereATMG ................ atmg.................... atomizingATNM ................ ATNM................. antitank nonmetallicATORP ............... atorp ................... antitorpedoATOS ................. ATOS.................. Assisted Takeoff SystemATR ................... ATR.................... air transport radioATR ................... ATR.................... antitransmit-receiveATRAN............... ATRAN............... automatic terrain recognition and navigationATRC ................. ATRC ................. anti tracking controlATRM ................ ATRM................. after torpedo roomATRT ................. ATRT.................. antitransmit-receive tubeATS.................... ATS.................... astronomical time switchATTD ................. attd ..................... attitudeATTEN ............... atten.................... attenuationATTEN ............... atten.................... attenuatorATTN ................. attn ..................... attentionATTY ................. atty ..................... attorneyATV ................... ATV ................... amateur televisionATW .................. atw ..................... atomic hydrogen weldATWT ................ atwt .................... atomic weightATXPL ............... atxpl.................... atomic explosionAU ..................... AU ..................... astronomical unitAUD................... aud ..................... audibleAUD................... aud ..................... audioAUDTR............... audtr ................... auditorAUG................... Aug .................... AugustAUM .................. AUM .................. air-to-underwater missileAUM .................. AUM .................. automatic monitoringAUTH................. auth .................... authorizeAUTO................. auto .................... automaticAUTO................. auto .................... automobileAUTOCV ............ autocv ................. automatic check valveAUTODIN ........... AUTODIN ........... automatic digital networkAUTOLEAN ........ autolean ............... automatic leanAUTOM .............. autom.................. automotiveAUTOMN............ automn ................ automationAUTOOVLD........ AUTOOVLD ........ automatic overloadAUTOP ............... AUTOP ............... automatic pistolAUTORECL......... AUTORECL......... automatic reclosingAUTORICH ......... AUTORICH ......... automatic richAUTOSCV........... AUTOSCV........... automatic stop and check valveAUTOSTRT ......... AUTOSTRT ......... automatic starterAUTOSTRTG....... autostrtg............... automatic startingAUTOVON.......... AUTOVON .......... automatic voice network



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August, 2003

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AUTOXFMR ........ AUTOXFMR ........autotransformerAUV ................... AUV ...................armored utility vehicleAUW .................. AUW...................antiunderwater warfareAUX ................... aux......................auxiliaryAUXR................. AUXR .................auxiliary registerAVAIL ................ avail ....................availableAVC ................... AVC ...................automatic volume controlAVDP ................. avdp ....................avoirdupoisAVE ................... AVE....................automatic volume expansionAVE ................... ave......................avenueAVG ................... avg......................averageAVGDIA ............. avgdia..................average diameterAVIONICS........... AVIONICS...........aviation electronicsAVLBL ............... avlbl....................availabilityAVN ................... avn......................aviationAVPL.................. AVPL..................average picture levelAW..................... aw.......................above waterAW..................... aw.......................accordance withAW..................... aw.......................acid wasteAW..................... AW.....................arming wireAWAR ................ awar ....................area weight average resolutionAWAT ................ awat ....................area weighted average T-numberAWG .................. AWG...................American Wire GageAWN .................. awn.....................awningAWNDLS ............ AWNDLS.............anchor windlassAXFL.................. AXFL..................axial flowAXFMR............... AXFMR...............automatic transformerAXP.................... AXP....................axial pitchAZ...................... az .......................azimuthAZEL.................. AZEL ..................azimuth and elevationAZRNG ............... AZRNG ...............azimuth and rangeAZS .................... AZS ....................automatic zero set

BB........................ b.........................balloonB........................ B ........................base [electron device]B........................ b.........................bomber [aircraft]B........................ b.........................breadth or beam of shipB........................ b.........................buoyancyB&I .................... B&I.....................base and incrementBA...................... BA......................backlash allowanceBA...................... BA......................breathing apparatusBA...................... BA......................buffer amplifierBAB ................... bab......................babbittBACT ................. bact .....................bacteriologicalBAF.................... baf ......................baffleBAG ................... bag......................baggageBAK ................... bak......................bakeryBAL.................... bal ......................balanceBAL.................... bal ......................ballisticBALCL................ balcl ....................balancing coilBALRHEO........... balrheo.................balancing rheostatBALS.................. bals .....................balancing set



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August, 2003

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BALV ................. balv .................... balanced voltageBAMG ................ BAMG ................ browning aircraft machine gunBAR ................... BAR ................... browning automatic rifleBARB ................. barb .................... barbetteBARO................. baro .................... barometerBARR ................. barr..................... barrierBASIC ................ BASIC................. beginner's all-purpose symbolic instruction code [computers]BASNET ............. basnet.................. basic networkBASW ................ basw ................... bell alarm switchBAT ................... bat ...................... batterBAT ................... bat ...................... battery [electrical]BAT ................... bat ...................... battleBATCHG............. batchg ................. battery chargerBATT ................. batt ..................... battenBAY ................... bay ..................... bayonetBAYC................. bayc .................... bayonet candelabraBAYCAND.......... bayc .................... bayonet candelabraBAYCANDDC ..... baycanddc ............ bayonet candelabra double contactBAYCANDSC...... baycandsc............. bayonet candelabra single contactBAYSK............... baysk .................. bayonet skirtedBB ..................... BB...................... back of boardBB ..................... bb....................... back to backBB ..................... BB...................... base bandBB ..................... BB...................... bell and bellBB ..................... BB...................... bulletin boardBB ..................... BB...................... bunching blackBBB ................... BBB.................... body-bound boltsBBM................... BBM................... break before makeBBRG ................. bbrg .................... ball bearingBBT ................... bbt ...................... bombardment [projectile]BBYCY............... bbycy .................. bow buoyancyBC ..................... BC...................... back-connectedBC ..................... BC...................... barge, cargoBC ..................... BC...................... barium crownBC ..................... BC...................... barrier coatBC ..................... BC...................... bell cordBC ..................... BC...................... between centersBC ..................... BC...................... binary counterBC ..................... BC...................... bolt circleBC ..................... bc ....................... bookcaseBC ..................... BC...................... bottom chordBC ..................... bc ....................... broadcastBCD ................... BCD ................... binary coded decimalBCHG................. bchg.................... bunchingBCI .................... BCI..................... binary coded informationBCKT ................. bckt .................... becketBCL ................... BCL.................... basic contour lineBCL ................... bcl ...................... bicycleBCL ................... bcl ...................... broom closetBCN ................... bcn ..................... beaconBCO ................... BCO ................... bridge cutoffBCT ................... BCT.................... bushing current transformerBCVX................. bcvx.................... biconvex



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August, 2003

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BD...................... BD......................base detonatingBD...................... BD......................battle dressingBD...................... BD......................binary decoderBD...................... bd .......................boardBDELIM.............. BDELIM..............band eliminationBDF.................... BDF ....................base detonating fuzeBDG ................... bdg .....................bindingBDGH................. BDGH .................binding headBDI..................... BDI.....................bearing deviation indicatorBDIA .................. bdia.....................base diameterBDL.................... bdl ......................bundleBDLT.................. bdlt .....................bow designation lightBDN ................... bdn .....................bend downBDNG................. bdng....................beddingBDO ................... bdo .....................bow doorBDPN ................. bdpn....................bedpanBDR ................... bdr ......................binderBDS.................... BDS ....................brass divider stripBDSD ................. BDSD..................base detonating, self-destroyingBDV ................... BDV ...................binary divideBDVG................. bdvg....................bow divingBDY ................... bdy .....................boundaryBDZR ................. bdzr.....................bulldozerBE...................... BE ......................back endBE...................... BE ......................base ejectionBE...................... BE ......................bell endBE...................... BE ......................bill of exchangeBE...................... BE ......................breaker endBELCRK ............. belcrk ..................bell crankBERTH................ berth....................berthingBES .................... BES ....................black enamel slateBESS .................. Bess ....................BessemerBETW................. betw ....................betweenBEV.................... bev......................bevelBF ...................... bf........................backfaceBF ...................... bf........................back-feedBF ...................... BF ......................base fuzeBF ...................... BF ......................beat frequencyBF ...................... BF ......................bell and flangeBF ...................... BF ......................boiler feedBF ...................... BF ......................boldface typeBF ...................... BF ......................both facesBF ...................... BF ......................bottom faceBFCO.................. bfco.....................band filter cutoffBFCT .................. BFCT ..................boiler feed compound tankBFD.................... BFD ....................back focal distanceBFD.................... BFD ....................book-form drawingBFG.................... bfg ......................buffingBFL .................... BFL ....................back focal lengthBFO.................... BFO ....................beat-frequency oscillatorBFP .................... BFP.....................boiler feed pumpBFR .................... bfr.......................beforeBFR .................... bfr.......................buffer



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August, 2003

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BFW................... BFW ................... boiler feedwaterBG ..................... BG ..................... back gearBGP ................... BGP.................... barrier, greaseproofBH ..................... BH ..................... boiler houseBH ..................... BH ..................... Brinell hardnessBHA ................... BHA ................... base helix angleBHD ................... bhd ..................... bulkheadBHN ................... BHN ................... Brinell hardness numberBI....................... BI....................... base ignitionBI....................... BI....................... black ironBICOND ............. bicond ................. biconditionalBIDIR ................. bidir .................... bi-directionalBIL..................... bil....................... basic impulse insulation levelBIL..................... BIL..................... blue indicating lightBIN .................... bin ...................... binaryBINOMEXP ......... BINOMEXP ......... binominal expansionBIO .................... bio ...................... biology (comb form)BIODEF .............. BIODEF .............. biological defenseBIOL .................. biol ..................... biologicalBIOL .................. biol ..................... biologyBIONICS............. BIONICS ............. biological electronicsBIOR .................. BIOR .................. business input-output rerunBIPD .................. BIPD................... biparting doorsBIT..................... BIT..................... binary digitBIT..................... BIT..................... built in testBITUM ............... bitum .................. bituminousBJ ...................... BJ....................... break jawBK ..................... BK ..................... barge, knockdownBK ..................... bk....................... blackBK ..................... bk....................... brakeBKD ................... bkd ..................... blackboardBKDN................. bkdn.................... breakdownBKDNDIO........... BKDNDIO ........... breakdown diodeBKGD................. bkgd.................... backgroundBKS ................... bks ..................... barracksBKSHL ............... bkshl ................... backshellBKSLF................ bkslf.................... back shelfBKT ................... bkt ...................... bucketBL...................... bl ....................... backlashBL...................... BL...................... base lineBL...................... BL...................... bend lineBL...................... BL...................... bill of ladingBL...................... bl ....................... billetBL...................... bl ....................... bladeBL...................... bl ....................... bleedBL...................... bl ....................... blueBL...................... BL...................... bottom layerBL...................... BL...................... breech loadingBL...................... BL...................... building lineBL...................... bl ....................... but-liveBL...................... BL...................... butt lineBL...................... BL...................... buttock lineBLD ................... BLD.................... balanced line driver



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August, 2003

Drawing Text Term


BLD.................... bld ......................blinderBLDG ................. bldg.....................buildingBLDR ................. bldr .....................bleederBLF .................... BLF ....................baryta light flingBLK.................... blk ......................blackBLK.................... blk ......................blankBLK.................... blk ......................blockBLKG ................. blkg.....................blankingBLKG ................. blkg.....................blockingBLKGD ............... blkgd ...................blanking dieBLKN ................. blkn.....................blackenBLKNG ............... blkng ...................blackeningBLKT.................. blkt .....................blanketBLMTH............... blmth...................bellmouthBLN.................... bln ......................blendBLNG ................. blng.....................bellingBLO.................... blo ......................blowerBLR.................... blr.......................boilerBLST .................. blst......................ballastBLSTGPWD......... blstgpwd ..............blasting powderBLSTL ................ blstl.....................billet steelBLT .................... BLT ....................borrowed lightBLTBT................ bltbt ....................bolted bonnetBLTIN................. bltin ....................built-inBLU.................... blu ......................blueBLW................... blw .....................belowBLWDN .............. blwdn ..................blowdownBLWS ................. blws ....................bellowsBLWT................. blwt.....................blowoutBLWT................. blwt.....................blowtorchBM ..................... BM .....................bench markBM ..................... BM .....................bill of materialBM ..................... BM .....................breech mechanismBMBDR .............. bmbdr..................bombardierBMEP ................. BMEP .................brake mean effective pressureBMEWS .............. BMEWS ..............Ballistic Missile Early Warning SystemBMG................... BMG...................browning machine gunBMKR................. bmkr ...................boilermakerBMSS ................. BMSS..................buoy messengerBMSTRG............. bmstrg .................beamsteeringBMTLC ............... bmtlc ...................bimetallicBMVP................. BMVP .................barrier, moisture-vaporproofBMW .................. bmw....................beamwidthBMXR................. bmxr ...................batch mixerBN...................... bn .......................battalionBN...................... bn .......................bullnoseBNCH ................. bnch ....................benchBNCHBD............. bnchbd.................benchboardBNCL ................. bncl.....................binnacleBNCLR ............... bnclr....................binocularBND ................... bnd .....................bondedBNDDIS .............. BNDDIS ..............band displayBNDG................. bndg....................bonding



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August, 2003

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BNDZ ................. bndz.................... bonderizeBNF ................... BNF.................... bomb nose fuzeBNG ................... bng ..................... bendingBNLS.................. bnls..................... bonelessBNR ................... bnr...................... burnerBNSH ................. bnsh .................... burnishBNT ................... bnt ...................... bonnetBO ..................... BO ..................... bail outBO ..................... bo....................... blackoutBO ..................... BO ..................... blocking oscillatorBO ..................... bo....................... blowoffBOB ................... bob ..................... bobbinBOBS ................. bobs .................... bolted on baseBOC ................... boc ..................... blowout coilBOC ................... BOC ................... body-on-chassisBOD ................... BOD ................... biochemical oxygen demandBOD ................... BOD ................... blackout doorBOFS.................. BOFS.................. black oil finish slateBOG ................... bog ..................... boilingBOLS.................. bols..................... bolsterBOMST............... bomst .................. bombsightBOPRESS............ bopress ................ boiler pressureBOSN ................. bosn .................... boatswainBOSS.................. BOSS.................. bioastronautic orbiting space stationBOT ................... bot ...................... bottomBOTMG .............. botmg.................. bottomingBOW .................. BOW .................. blackout windowBOWR ................ BOWR ................ boiler waterBP...................... BP ...................... back pressureBP...................... bp....................... bandpassBP...................... BP ...................... base percussionBP...................... BP ...................... base pitchBP...................... BP ...................... base plateBP...................... BP ...................... between perpendicularsBP...................... BP ...................... black powderBP...................... bp....................... blueprintBP...................... BP ...................... boiling pointBP...................... BP ...................... bolted plateBPC.................... BPC.................... back-pressure controlBPD ................... BPD.................... bushing potential deviceBPI..................... BPI ..................... bits per inchBPLA.................. BPLA.................. bow planeBPRF.................. bprf..................... bulletproofBPS .................... BPS .................... bearing procurement specificationBPS .................... BPS .................... bits per secondBPT.................... bpt ...................... bipostBR ..................... br ....................... bedroomBR ..................... BR...................... bend radiusBR ..................... br ....................... bookrackBR ..................... br ....................... branchBR ..................... br ....................... brownBR ..................... br ....................... brushBR ..................... BR...................... buffer register



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August, 2003

Drawing Text Term


BRAZ ................. braz.....................brazierBRAZH ............... brazh ...................brazier headBRCH ................. brch.....................broachBRD ................... brd ......................braidBRD ................... brd ......................braidedBRDB ................. brdb ....................broadbandBRDG ................. brdg ....................bridgeBRG ................... brg ......................bearingBRH ................... brh ......................brush holderBRIL................... bril......................brillianceBRK ................... brk ......................breakBRK ................... brk ......................brickBRKBD ............... brkbd...................brake bandBRKG ................. brkg ....................breakingBRKR ................. brkr .....................breakerBRKT ................. brkt .....................bracketBRLP .................. brlp .....................burlapBRLS .................. BRLS ..................Barrier Ready Light SystemBRN ................... brn ......................brownBRNG ................. brng ....................burningBRRD ................. brrd .....................barredBRRG ................. brrg .....................barringBRS .................... brs ......................brassBRSIT ................. brsit.....................boresightBRSTR................ brstr ....................bursterBRSTSTR ............ brststr ..................bursting strengthBRT.................... brt.......................brightBRT.................... brt.......................brightnessBRTH ................. brth .....................breatheBRTHR ............... brthr ....................breatherBRZ.................... brz ......................brazeBRZ.................... brz ......................bronzeBRZG ................. brzg.....................brazingBS ...................... bs .......................beams and stringersBS ...................... BS ......................bell and spigotBS ...................... BS ......................bill of saleBS ...................... BS ......................binary subtractBS ...................... BS ......................black scaleBS ...................... BS ......................bomb serviceBS ...................... bs .......................borescopeBS ...................... BS ......................both sidesBS ...................... BS ......................Brown & Sharpe Wire GageBSC .................... bsc ......................basicBSC .................... BSC ....................borosilicate crownBSFL .................. bsfl .....................bandstop filterBSHG ................. bshg ....................bushingBSI ..................... BSI .....................British StandardBSKT.................. bskt .....................basketBSLR .................. bslr .....................bus selectorBSMITH.............. bsmith .................blacksmithBSMT ................. bsmt ....................basementBSP .................... bsp......................ball stopBSTL .................. bstl......................bistaple



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August, 2003

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BSTLT................ bstlt .................... blue stern lightBSTR.................. bstr ..................... boosterBSTRKT ............. bstrkt................... boost rocketBT...................... BT...................... barge, trainingBT...................... bt ....................... bathythermographBT...................... bt ....................... bentBT...................... BT...................... bus tieBTCR ................. btcr ..................... butcherBTD ................... BTD.................... bomb testing deviceBTF.................... BTF .................... bomb tail fuzeBTFL.................. BTFL .................. butterflyBTH ................... bth ...................... berthBTL.................... btl....................... bottleBTLL.................. BTLL.................. bottom lead leftBTLR.................. BTLR.................. bottom lead rightBTN ................... btn ...................... buttonBTNHD............... BTNHD............... button headBTR ................... BTR.................... barrel tile roofBTR ................... BTR.................... bus transferBTR ................... BTR.................... bush transferBTRY ................. btry..................... batteryBTS.................... BTS .................... blue tool steelBTST.................. btst ..................... bootstrapBTU ................... BTU.................... British thermal unitBTWLD .............. BTWLD............... butt weldBU ..................... BU ..................... bulk [substrate] [electron device]BU ..................... bu....................... bureauBU ..................... bu....................... bushelBUBMEM ........... BUBMEM............ bubble memoryBUCK................. buck.................... buckramBUIS .................. BUIS................... Barrier Up Indicator SystemBULL ................. bull ..................... bulletinBUP ................... bup ..................... bend upBUS ................... bus ..................... businessBUTN ................. butn .................... butaneBUZ ................... buz ..................... buzzerBV ..................... bv....................... back viewBVC ................... BVC ................... black varnish cambric [insul]BVGE ................. bvge.................... beverageBW..................... bw ...................... bandwidthBW..................... BW..................... biological warfareBW..................... bw ...................... black and whiteBW..................... bw ...................... black and white printsBW..................... BW..................... both waysBW..................... BW..................... braided wireBWG .................. BWG .................. Birmingham Wire GageBWL................... BWL................... belt work lineBWLT................. bwlt .................... bow lightBWM.................. BWM.................. backward-wave magnetronBWO .................. BWO .................. backward-wave oscillatorBWP................... BWP ................... barrier, waterproofBWPA ................ BWPA................. backward-wave power amplifierBWS................... BWS ................... beveled wood siding



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August, 2003

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BWSM ................ BWSM ................bread wrapping and sealing machineBWSTRN............. bwstrn..................bowstringBWV................... BWV...................backwater valveBXDT ................. BXDT..................boxcar detectorBXF.................... bxf ......................box finBYNT ................. bynt.....................buoyantBYP.................... byp .....................bypass

CC........................ C ........................CelsiusC TO C................ C TO C ................center to centerC&D ................... c&d.....................communications and dataCAD ................... CAD ...................communications access deviceCAD ................... CAD ...................compensated avalanche diodeCAD ................... CAD ...................computer access deviceCAD ................... CAD ...................computer aided designCADI .................. CADI ..................computer access device inputCADO................. CADO .................computer access device outputCAGC ................. CAGC .................coded automatic gain controlCAGE ................. CAGE..................commercial and government entity (code)CAL.................... cal.......................calibrationCAM................... CAM...................checkout and automatic monitoringCAM................... CAM...................computer aided manufacturingCANTRAN........... CANTRAN...........canceled transmissionCAP.................... cap......................capacitanceCAPE.................. CAPE ..................communications automatic processing equipmentCARP.................. CARP..................computed air release pointCASE.................. CASE ..................computer automated support equipmentCAT.................... cat.......................categoryCAT.................... CAT....................clear air turbulenceCATE.................. CATE..................computer aided test equipmentCATV ................. catv .....................cable televisionCAUT ................. caut .....................cautionCAVU................. CAVU .................ceiling and visibility unlimitedCAX ................... CAX ...................community automatic exchangeCB...................... CB ......................comparator bufferCB...................... CB ......................component boardCBA ................... CBA....................component board assemblyCBL.................... cbl ......................cableCBM................... CBM ...................chemical biological munitionsCBS .................... CBS ....................controlled blip scanCBU ................... CBU....................cluster bomb unitCC...................... CC ......................color codeCCC.................... CCC....................component change controlCCD ................... CCD....................central command decoderCCD ................... CCD....................charge coupled deviceCCFT .................. CCFT ..................controlled current feedback transformerCCM................... CCM ...................controlled carrier modulationCCMD................. CCMD.................continuous current monitoring deviceCCN ................... CCN....................command control numberCCP .................... CCP ....................consolidated cryptologic programCCT.................... CCT ....................constant current transformerCCU ................... CCU....................camera control unit



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August, 2003

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CD ..................... CD ..................... capacitor diodeCD ..................... CD ..................... common digitizerCD ..................... CD ..................... controls and displaysCDA ................... CDA ................... command data acquisitionCDC ................... CDC ................... cold drawn copperCDF ................... CDF.................... combined distribution frameCDG ................... CDG ................... capacitor diode gateCDI .................... CDI .................... course deviation indicatorCDR ................... CDR ................... command destruct receiverCDR ................... CDR ................... critical design reviewCDRL ................. CDRL ................. contract data requirements listCDT ................... CDT.................... command destruct transmitterCDW .................. CDW .................. computer data wordCEF.................... CEF .................... carrier elimination filterCEI..................... CEI..................... contract end itemCEL.................... cel ...................... celestialCEM................... CEM ................... communications electronics meteorologicalCF...................... Cf....................... cable fuzing [firing]CF...................... CF ...................... carrier frequencyCF...................... CF ...................... concept formulationCF...................... CF ...................... counterfireCFAE.................. CFAE.................. contractor furnished aircraft equipmentCFF .................... CFF .................... critical flicker frequencyCFM ................... CFM ................... center frequency modulationCFM ................... cfm ..................... cubic feet per minuteCFR.................... CFR.................... carbon film resistorCFS .................... CFS .................... carrier frequency shiftCFS .................... CFS .................... center frequency stabilizationCFS .................... cfs ...................... cubic feet per secondCHAMB .............. chamb ................. chamberCHG ................... chg ..................... changeCI....................... CI....................... computer indicatorCI....................... ci........................ configuration itemCI....................... CI....................... counter intelligenceCID .................... CID .................... change in designCIN .................... cin ...................... code identification numberCIS..................... CIS ..................... close-in supportCKT ................... CKT.................... circuitCL...................... CL...................... closed loopCL...................... CL...................... contact lostCL...................... cl........................ center lineCLA ................... CLA.................... center line averageCLAC ................. CLAC ................. closed loop approach controlCLAR ................. clar ..................... clarificationCLS.................... CLS .................... constant level speechCLU ................... CLU.................... central logic unitCM..................... CM ..................... circuit masterCM..................... CM ..................... command moduleCM..................... CM ..................... core memoryCM..................... CM ..................... corrective maintenanceCMBD ................ cmbd................... combinedCMD .................. CMD................... core memory driverCMD .................. CMD................... countermeasures and deception



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August, 2003

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CMH................... CMH...................countermeasures homingCMP ................... CMP ...................component metal partsCMR................... CMR ...................communications moon relayCN...................... CN......................carrier to noiseCN...................... cn .......................communications and navigationCNCR ................. cncr.....................concurrentCOA ................... COA ...................constant output amplifierCOBI .................. COBI...................coded biphaseCODAR............... CODAR ...............correlation display analyzing and recordingCODIT ................ codit ....................computer direct to telegraphCOIN .................. coin.....................counterinsurgencyCOLT.................. colt .....................communication line terminatorCOMB................. comb ...................combiningCOMINT ............. COMINT..............communications intelligenceCOMJAM ............ COMJAM.............communications jammingCOMNEED .......... comneed...............communications needCOMNET ............ COMNET.............communications networkCOMO ................ COMO.................coherent master oscillatorCOMP................. comp ...................compilerCOMPR............... compr ..................compressorCOMSAT............. comsat .................communications satelliteCOMSN............... comsn..................commissionCON ................... con......................concessionCONC ................. conc ....................concentricCOND................. cond ....................conditionCOND................. cond ....................conductorCONF ................. conf.....................conferenceCONF ................. conf.....................confineCONL ................. conl.....................conicalCONN................. conn ....................connectionCONSCAN........... conscan ................conical scanCONSEC ............. consec..................consecutiveCONT ................. cont.....................contactCONT ................. cont.....................continuedCONT ................. cont.....................controllerCONTD ............... contd ...................continuedCONTHP ............. CONTHP .............continental horsepowerCONTRAIL.......... contrail ................condensation trailCONVG............... convg ..................convergenceCONVN............... convn ..................convectionCONVR............... convr ...................convectorCOR ................... COR....................carrier operated relayCOR ................... cor ......................cornerCORAD............... CORAD ...............correlation radarCORAL ............... coral ....................command radio linkCORAL ............... CORAL ...............correlation radio linkCOTAR ............... COTAR ...............correlated orientation tracking and rangingCOZI................... COZI...................communications zone indicatorCP ...................... cp .......................candlepowerCP ...................... CP ......................centipoiseCP ...................... CP ......................change pointCP ...................... CP ......................circular polarizationCP ...................... CP ......................close packed



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August, 2003

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CP...................... CP ...................... control pointCPACS................ CPACS................ coded pulse anticlutter systemCPAM................. CPAM................. continental polar air massCPBL.................. cpbl .................... capableCPC.................... CPC.................... clock pulsed controlCPC.................... CPC.................... computer process controlCPD ................... CPD.................... contact potential differenceCPE.................... CPE .................... central processing elementCPE.................... CPE .................... circular probable errorCPI..................... CPI ..................... crash position indicatorCPM ................... CPM ................... card per minuteCPO ................... CPO.................... command pulse outputCPSK.................. CPSK.................. coherent phase shift keyingCPU ................... CPU.................... central processing unitCR ..................... CR...................... change requestCR ..................... CR...................... combat readyCR ..................... CR...................... component repairCR ..................... CR...................... continuous rodCR ..................... CR...................... controlled rectifierCR ..................... cr ....................... creditCRAM ................ CRAM ................ card random access memoryCRCG ................. crcg .................... card cageCRDL ................. crdl ..................... cradleCRNMTR ............ crnmtr ................. chronometerCRO ................... CRO ................... cathode-ray oscilloscopeCROM ................ CROM ................ control read-only memoryCRP.................... crp ...................... crimpCRPL.................. CRPL.................. chromium plateCRS.................... crs ...................... coarseCRS.................... CRS.................... cold-rolled steelCRSHD ............... crshd ................... crossheadCRSN ................. crsn..................... corrosionCRSV ................. crsv..................... corrosiveCRSVR ............... crsvr.................... crossoverCRT ................... CRT.................... cathode-ray tubeCRT ................... CRT.................... circuit requirement tableCRTANLTHR ...... crtanlthr ............... chrome-tanned leatherCRTG ................. crtg ..................... cartridgeCRTOG............... crtog ................... canographerCRTS.................. CRTS.................. controllable radar target simulatorCRUIS ................ cruis.................... cruisingCRV ................... crv ...................... curveCRVAN............... crvan................... chrome vanadiumCRVDWG ........... crvdwg ................ curve drawingCRYG................. cryg .................... carryingCRYOG............... cryog................... cryogenicsCRYPTO ............. crypto.................. cryptographyCRYST ............... cryst.................... crystallineCS...................... CS ...................... carbon steelCS...................... CS ...................... carrier supplyCS...................... CS ...................... cast steelCS...................... CS ...................... cast stoneCS...................... CS ...................... center section



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August, 2003

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CS ...................... CS ......................close supportCS ...................... CS ......................coil sketchCS ...................... CS ......................common steel [projectile]CS ...................... cs........................conducted susceptibilityCS ...................... CS ......................control switchCS ...................... CS ......................core shiftCS ...................... cs........................cycle per secondCSB .................... CSB ....................concrete splash blockCSC .................... CSC ....................cartridge storage caseCSC .................... csc ......................cosecantCSCR.................. CSCR ..................complementary semiconductor controlledCSD.................... CSD ....................cold sideCSD.................... CSD ....................constant speed driveCSD.................... CSD ....................core shift driverCSE .................... CSE ....................communications support elementCSE .................... CSE ....................core storage elementCSG.................... csg ......................casingCSHAFT.............. cshaft...................crankshaftCSHG ................. cshg ....................cushingCSK.................... csk ......................countersinkCSKH ................. CSKH..................countersunk headCSKO ................. CSKO..................countersink other sideCSL .................... csl.......................consoleCSM ................... CSM ...................command and service moduleCSMITH.............. CSMITH ..............coppersmithCSMT ................. CSMT .................circuit switching magnetic tapeCSORO ............... CSORO................conical scan on receive onlyCSP .................... CSP.....................coder sequential pulseCSR .................... CSR ....................communications satellite relayCSR .................... CSR ....................control shift registerCSS .................... CSS.....................control stick steeringCSSB .................. CSSB ..................compatible single sidebandCSTG.................. cstg .....................castingCSTL .................. cstl......................castellateCSTR .................. cstr......................canisterCSU.................... CSU ....................circuit switching unitCSW ................... CSW ...................control power switchCT...................... CT ......................center tapCT...................... CT ......................ceramic tileCT...................... CT ......................computerized tomographyCT...................... ct ........................countCT...................... CT ......................current transformerCTAM................. CTAM .................continental tropical air massCTB.................... CTB ....................ceramic-tile baseCTC.................... CTC ....................cam timing contactCTC.................... CTC ....................centralized traffic controlCTCCC ............... CTCCC................close type control circuit contactCTD.................... ctd ......................coatedCTE .................... CTE ....................cable termination equipmentCTE .................... CTE ....................central timing equipmentCTF .................... CTF ....................ceramic-tile floorCTG.................... ctg ......................coatingCTG.................... ctg ......................crating



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August, 2003

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CTG ................... ctg ...................... cuttingCTGH ................. ctgh .................... cryptographCTL.................... CTL.................... centralCTL.................... CTL.................... complementary transistor logicCTL.................... CTL.................... core transistor logicCTLRY ............... ctlry .................... cutleryCTLST................ ctlst..................... catalystCTM................... ctm ..................... count per minuteCTN ................... ctn ...................... cartonCTPS .................. CTPS .................. changeable type-plate styleCTR ................... ctr....................... centerCTR ................... ctr....................... contourCTR ................... ctr....................... counterCTR ................... ctr....................... cutterCTRF.................. CTRF.................. center frequencyCTRG ................. CTRG ................. centeringCTRL.................. ctrl...................... control [computers]CTRS.................. ctrs ..................... contrastCTS.................... CTS .................... close to shoulderCTS.................... cts ...................... count per secondCTSHFT.............. ctshft ................... countershaftCTSK.................. ctsk..................... countersunkCTT.................... CTT.................... card-to-tape tapeCTU ................... CTU.................... central timing unitCTWALK ............ CTWALK ............ catwalkCTWT................. ctwt .................... counterweightCTY ................... CTY.................... countyCU ..................... cu ....................... cubicCU ..................... CU ..................... piezoelectric-crystal unitCUB ................... cub ..................... cubicleCUFT.................. cuft ..................... cubic footCUIN.................. cuin .................... cubic inchCUJT .................. CUJT .................. complementary unijunction transistorCULV ................. culv .................... culvertCUM .................. cum .................... cubic meterCUM .................. cum .................... cumulativeCUMM................ cumm.................. cubic millimeterCUO ................... cuo ..................... copper oxideCUP ................... cup ..................... cupboardCUR ................... cur ...................... currentCURT ................. curt ..................... curtainCUSH ................. cush .................... cushionCUST.................. cust..................... customerCUTS.................. cuts..................... cut stoneCUYD................. cuyd.................... cubic yardCV ..................... CV ..................... check valueCV ..................... CV ..................... combat vehicleCV ..................... CV ..................... continuously variableCV ..................... CV ..................... counter voltageCVK ................... CVK ................... center line vertical keelCVL ................... cvl ...................... civilCVNTL ............... cvntl.................... conventionalCVRSN ............... cvrsn ................... conversion



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August, 2003

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CVX ................... cvx......................convexCW..................... CW .....................carrier waveCW..................... CW .....................chemical warfareCW..................... cw.......................clockwiseCW..................... CW .....................cold waterCW..................... CW .....................complete withCW..................... CW .....................continuous waveCWAR ................ CWAR.................continuous wave acquisition radarCWC................... CWC...................clear write conditionCWFM ................ CWFM ................continuous wave frequency modulatedCWG................... CWG...................corrugated wire glassCWI.................... CWI ....................continuous wave illuminatorCWIF .................. CWIF ..................continuous wave intermediate frequencyCWP ................... CWP ...................circulating water pumpCWS ................... CWS ...................control wheel steeringCX...................... CX......................control transmitterCY...................... cy .......................cycleCYCLO ............... cyclo ...................cyclotronCYL.................... cyl ......................cylinderCYL.................... cyl ......................cylindricalCYLCART ........... cylcart..................cylindrical cartridgeCYLL.................. cyll .....................cylinder lockCYN ................... cyn......................cyanide

DD........................ D ........................depth (of ship)D........................ D ........................penny [nails, etc.]DA ..................... DA......................delta amplitudeDA ..................... DA......................digital-to-analogDAC ................... DAC ...................digital-to-analog converterDACT ................. dact .....................direct actingDAD ................... DAD ...................double-acting doorDAGC................. DAGC .................delayed automatic gain controlDAM................... DAM...................descriptor attribute matrixDAMLG .............. DAMLG ..............dental amalgamatorDAMP................. DAMP .................distribution amplifierDAS.................... DAS....................direct acting steamDASTARD........... DASTAR .............destroyer antisubmarine transportable array detectionDASTM............... DASTM ...............double-acting steamDAT ................... dat ......................datumDAVC................. DAVC .................delayed automatic volume controlDB...................... dB ......................decibelDB...................... DB......................distribution boxDB...................... DB......................double bottomDB...................... DB......................double breakDB...................... DB......................double-biased [relay]DB...................... DB......................dry bulbDBAO................. DBAO .................digital block AND-OR gateDBB ................... DBB....................detector back biasDBC ................... DBC....................diameter bolt circleDBD ................... DBD ...................diesel belt driveDBF.................... DBF ....................demodulator band filterDBFS .................. DBFS ..................dull black finish slate



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August, 2003

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DBL ................... dbl ...................... doubleDBLACT............. DBLACT ............. double-actingDBLF.................. DBLF.................. double faceDBLR ................. dblr..................... doublerDBLW ................ DBLW................. double-wallDBP ................... DBP.................... drawbar pullDBSP.................. DBSP.................. double-based solid propellantDBUT ................. DBUT ................. data base update timeDC ..................... DC ..................... damage controlDC ..................... DC ..................... depth chargeDC ..................... DC ..................... direct currentDC ..................... DC ..................... double contactDC N .................. DC N .................. drawing change noticeDCD ................... dcd ..................... decodeDCDR................. dcdr .................... decoderDCHAN .............. dchan .................. difference channelDCHEM .............. dchem ................. dry chemicalDCKG................. dckg.................... dockingDCL ................... DCL.................... door closerDCLR ................. dclr ..................... decelerateDCLU ................. dclu .................... declutchDCMPS............... DCMPS ............... degaussing compassDCMPTR............. DCMPTR............. degaussing computerDCTL ................. DCTL.................. direct-coupled transistor logicDCTP.................. DCTP.................. duct typeDCU ................... DCU ................... digital counting unitDCU ................... DCU ................... display and control unitDD ..................... DD ..................... deep-drawnDD ..................... dd....................... diesel directDD ..................... DD ..................... disconnecting deviceDD ..................... DD ..................... drydockDD ..................... DD ..................... dutch doorDD ..................... dd....................... double densityDDA................... DDA ................... digital differential analyzerDDC ................... DDC ................... digitally directed controlDDD................... DDD ................... direct distance dialingDDI .................... DDI .................... depth deviation indicatorDDR ................... DDR ................... direct driveDDV................... ddv ..................... deck drain valveDE ..................... de ....................... diesel-electricDE ..................... DE...................... double endDE ..................... DE...................... drive endDEA ................... dea...................... diethanolamineDEARTG............. deartg .................. deaeratingDEC ................... Dec..................... DecemberDEC ................... dec...................... decimalDECAL ............... decal ................... decalcomaniaDECN ................. decn .................... decisionDECOMPN .......... decompn .............. decompressionDECONTN .......... decontn................ decontaminationDECR ................. decr .................... decreaseDECRT ............... decrt.................... decrementDED ................... ded ..................... dedendum



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August, 2003

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DED ................... DED....................diesel engine, direct driveDEF .................... def ......................defectiveDEF .................... def ......................defenseDEF .................... def ......................definitionDEFL .................. defl .....................deflectDEFT .................. DEFT ..................definite timeDEG ................... deg......................degreeDEGUSG ............. DEGUSG .............degaussingDEL.................... del ......................delineationDELE.................. dele .....................deleteDELT.................. delt .....................deck edge lightDEMA................. DEMA.................distributed emission magnetron amplifierDEMOD .............. demod..................demodulatorDEN ................... den......................denoteDENG ................. deng ....................diesel engineDENS.................. dens ....................densityDEP .................... dep......................depositDEPINST............. depinst .................depot installedDEPR.................. depr.....................depressionDEPT .................. dept.....................departmentDER.................... der ......................dermatineDER.................... DER....................diesel engine, reduction driveDERIV ................ deriv....................derivativeDES .................... des ......................designationDES .................... des ......................designatorDES .................... des ......................designerDESCP ................ descp ...................descriptionDESCR................ descr ...................describeDESTN................ destn ...................destinationDESTR................ destr ....................destructorDESTRFIR........... destrfir .................destructive firingDET.................... det ......................detailDET.................... det ......................detectorDET.................... det ......................determinantDET.................... det ......................detonatorDETN ................. detn.....................detentionDETN ................. detn.....................determinationDEV ................... dev......................developmentDEV ................... dev......................deviateDEVEQL ............. DEVEQL .............deviation equalizerDEVLG ............... DEVLG ...............developed lengthDEVN ................. devn ....................deviationDEW................... DEW...................distant early warningDEWTRG ............ dewtrg .................dewateringDF...................... df........................defoggingDF...................... DF ......................dense flintDF ...................... df........................direction finderDF ...................... DF ......................dissipation factorDF ...................... DF ......................double feederDF ...................... DF ......................douglas firDF ...................... DF ......................drinking fountainDF...................... DF ......................drive fitDF ...................... DF ......................drop forge



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August, 2003

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DFL.................... dfl ...................... deflatingDFMACH ............ DFMACH ............ drafting machineDFR ................... dfr ...................... defrostDFT.................... DFT.................... deaerating feed tankDFT.................... DFT.................... discrete fourier transformDFT.................... dft ...................... draftDFT.................... dft ...................... driftDFTG ................. dftg..................... draftingDFTR.................. dftr ..................... deflectorDFTSMN............. DFTSMN............. draftsmanDG ..................... dg....................... disk grindDG ..................... dg....................... doggedDG ..................... DG ..................... double-groove [insulators]DGDP ................. DGDP ................. double-groove double-petticoat [insulators]DGLD................. dgld .................... diaphragm glandDGR ................... dgr...................... degreaseDGS ................... DGS.................... degaussing systemDGSFR ............... DGSFR................ degasifierDGTL ................. dgtl ..................... digitalDGTZR ............... dgtzr ................... digitizerDHD................... DHD ................... drop hammer dieDHMY................ dhmy................... dehumidifyDHW .................. DHW .................. double-hung windowsDI ...................... di ....................... deicingDI ...................... DI....................... demand indicatorDIA .................... DIA .................... deficiency in allowanceDIA .................... dia ...................... diameterDIAG.................. diag .................... diagonalDIAG.................. diag .................... diagramDIAGR................ diagr ................... diagrammaticDIALPHTH.......... dialphth ............... diallyl phthalateDIAPH................ diaph................... diaphragmDID .................... DID .................... direct inward dialingDIEL .................. diel ..................... dielectricDIFA .................. difa ..................... differential amplifierDIFF................... diff ..................... differenceDIFF................... diff ..................... differentialDIFFR................. diffr .................... diffractionDIFFTR............... difftr ................... differential time relayDIFFUS............... diffus .................. diffusingDIGN.................. dign .................... diagnosticDIHY.................. dihy .................... dihydrateDIL .................... dil....................... diluteDIM.................... dim ..................... dimensionDINA.................. DINA.................. direct noise amplificationDIO .................... dio ...................... diodeDIOPT ................ diopt ................... diopterDIP..................... DIP..................... dual inline packageDIPLXR .............. diplxr .................. diplexerDIPX .................. dipx .................... diplexDIR .................... dir ...................... directDIR .................... dir ...................... directionDIR .................... dir ...................... directional



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August, 2003

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DIR..................... dir.......................directorDIRCONN ........... dirconn ................direct-connectDIRCOUP............ dircoup ................directional couplerDIRFLT............... dirflt ....................directional filterDISASSM ............ disassm ................disassembleDISASSY............. disassy .................disassemblyDISC................... disc .....................disconnectDISCAPRS........... DISCAPRS...........dental suction apparatusDISCH ................ disch ...................dischargeDISLVD .............. dislvd ..................dissolvedDISM .................. dism ....................dismantleDISP ................... disp .....................dispatcherDISP ................... disp .....................dispensaryDISP ................... disp .....................dispenserDISP ................... disp.....................displacementDISPN................. dispn ...................dispositionDIST................... dist......................distanceDIST................... dist......................distantDIST................... dist......................districtDISTING ............. disting .................distinguishDISTN................. distn ....................distortionDISTR................. distr.....................distributeDISTR................. distr.....................distributorDIV .................... div ......................diverterDIV .................... div ......................divideDIV .................... div ......................divisionDJ ...................... DJ.......................drill jigDKE ................... dke......................deck edgeDKHSE ............... dkhse...................deckhouseDKPG ................. DKPG..................depth keepingDL...................... DL ......................data linkDL...................... DL ......................data listDL...................... dl........................daylightDL...................... dl........................dead lightDL...................... dl........................dead loadDL...................... dl........................delay lineDL...................... DL ......................drawing listDLILMN.............. dlilmn..................dial illuminationDLINDG.............. dlindg ..................dial indicatingDLO ................... dlo ......................daylight openingDLOCK ............... dlock ...................dial lockDLR.................... dl........................dealerDLT.................... dlt .......................data line translatorDLVY ................. dlvy.....................deliveryDLX ................... dlx ......................deluxeDLX ................... dlx ......................die lockDLY ................... dly ......................delayDLY ................... dly ......................dollyDM..................... DM .....................demand meterDM..................... DM .....................diesel mechanicalDM..................... DM .....................dressed and matchedDMA................... DMA...................direct memory accessDMC................... DMC...................digital microcircuit



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August, 2003

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DMD .................. dmd .................... diamondDME................... DME................... distance-measuring equipmentDMGT ................ dmgt ................... data managementDMGZ ................ dmgz................... demagnetizeDMH .................. dmh .................... drop manholeDML................... dml ..................... demolitionDMNRLZR .......... dmnrlzr................ demineralizerDMPG ................ dmpg................... dumpingDMPR................. dmpr ................... damperDMR .................. dmr..................... dimmerDMTZR............... dmtzr .................. demagnetizerDN ..................... dn....................... downDNA................... DNA ................... does not applyDNDFT ............... dndft ................... downdraftDNG................... dng ..................... diningDNTL ................. dntl ..................... dentalDNTRD............... dntrd ................... denaturedDNU................... DNU ................... do not useDO ..................... DO ..................... diesel oilDO ..................... DO ..................... dissolved oxygenDO ..................... do....................... dittoDO ..................... DO ..................... draw outDOC ................... doc ..................... documentDOD................... DOD ................... direct outward dialingDOL ................... DOL ................... dynamic octal loadDOM .................. dom .................... domesticDOS ................... DOS.................... disk operated systemDOVAP............... DOVAP............... doppler velocity and positionDOZ ................... doz ..................... dozenDP...................... dp....................... dampproofingDP...................... dp....................... dashpot [relay]DP...................... dp....................... deck piercingDP...................... DP...................... deflection plateDP...................... DP...................... demand meter printingDP...................... dp....................... depthDP...................... DP...................... dew pointDP...................... DP...................... diametral pitchDP...................... DP...................... differential pressureDP...................... DP...................... double-poleDP...................... DP...................... drill plateDP...................... dp....................... dripproofDP...................... DP...................... dry batteryDP...................... dp....................... dual-purposeDP...................... DP...................... two-poleDPBC ................. DPBC.................. double-pole back-connectedDPDT ................. DPDT.................. double-pole double-throwDPDT ................. DPDT.................. two-pole double-throwDPDTSW............. DPDTSW............. double-pole double-throw switchDPFC.................. DPFC.................. double-pole front-connectedDPFT.................. DPFT .................. desk, double-pedestal flat-toDPG ................... dpg ..................... dampingDPH ................... DPH.................... diamond-pyramid hardnessDPI..................... dpi ...................... dots per inch



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August, 2003

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DPLXR................ dplxr ...................duplexerDPM ................... DPM ...................data processing machineDPNL.................. DPNL..................distribution panelDPO.................... DPO....................dripproof openDPP .................... DPP ....................dripproof protectedDPR.................... dpr ......................diazo printDPRP .................. DPRP ..................dripproof and ratproofDPS .................... DPS ....................dripproof semi-enclosedDPSK.................. dpsk ....................dipstickDPST .................. DPST ..................double-pole single-throwDPST .................. DPST .................. two-pole single-throwDPSTSW ............. DPSTSW..............double-pole single-throw switchDPSW ................. DPSW .................double-pole switchDPT .................... DPT ....................dripproof totally enclosedDPTW................. DPTW .................desk, double-pedestal typewriterDPV.................... DPV....................dry pipe valveDR...................... dr........................dead reckoningDR...................... DR......................drafting requestDR...................... dr........................drainDR...................... dr........................dramDR...................... dr........................drillDR...................... DR......................drill rodDR...................... dr........................driveDRA ................... dra ......................dead reckoning analyzerDRCDG............... drcdg ...................data recordingDRCTY ............... drcty....................directlyDRDCN............... drdcn ...................data reductionDRE.................... DRE....................dead reckoning equipmentDRGR ................. drgr .....................dredgerDRI..................... DRI.....................dead reckoning indicatorDRK ................... drk ......................derrickDRM................... DRM...................drafting room manualDRO ................... DRO ...................destructive readoutDRS.................... drs ......................dressed [lumber]DRSG ................. drsg.....................dressingDRSR.................. drsr .....................dresserDRT.................... DRT....................dead reckoning tracerDRTA ................. drta .....................driptankDRTL.................. DRTL..................diode resistor transistor logicDRTR ................. DRTR..................dead reckoning trainerDRU ................... DRU ...................drive unitDRVR ................. drvr .....................driverDS ...................... DS ......................decade scalerDS ...................... DS ......................decanning scuttleDS ...................... DS ......................discarding sabotDS ...................... DS ......................disconnect switchDS...................... DS ......................display and storageDS...................... DS ......................domestic serviceDS...................... ds .......................downspoutDS ...................... DS ......................draft stopDS...................... ds .......................double sidedDSB.................... DSB ....................double-sidebandDSBL.................. dsbl .....................disable



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August, 2003

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DSCC ................. dscc .................... desiccantDSCONT............. dscont.................. discontinueDSCRM .............. dscrm .................. discriminatorDSCT.................. DSCT.................. double secondary current transformerDSD ................... DSD.................... dual-speed driveDSENGA............. dsenga ................. disengagingDSGN ................. dsgn .................... designDSHR ................. dshr .................... dish-rinsingDSIF................... DSIF ................... deep-space instrumentation facilityDSL.................... dsl ...................... dieselDSLT.................. dslt ..................... deck surface lightDSLTR................ dsltr .................... desalterDSNTZ ............... dsntz ................... desensitizeDSPEC................ DSPEC ................ design specificationDSPL.................. dspl..................... displayDSPL.................. dspl..................... disposalDSPNSG ............. dspnsg ................. dispensingDSR ................... DSR.................... data scanning and routingDSSB.................. DSSB.................. double single-sidebandDST.................... DST.................... door stopDSTL.................. dstl ..................... distillDSTLT................ dstlt .................... distillateDSU ................... DSU.................... disk storage unitDSUPHTR ........... dsupht ................. desuperheaterDSW................... DSW................... door switchDT ..................... DT...................... decay timeDT ..................... DT...................... deep tankDT ..................... DT...................... die templateDT ..................... DT...................... double-throwDT ..................... DT...................... drain tileDT ..................... DT...................... dual tiresDT ..................... DT...................... dust-tightDTCH ................. dtch .................... detachedDTD ................... DTD ................... datedDTE.................... DTE.................... data terminal equipmentDTER ................. dter ..................... ditherDTL.................... DTL.................... diode transistor logicDTR ................... DTR.................... definite-time relayDTR ................... DTR.................... demand-totalizing relayDTRBD............... dtrbd ................... daughterboardDTRS.................. dtrs ..................... distressDTT.................... dtt....................... detentDTVM ................ DTVM................. differential thermocouple voltmeterDTYCY............... DTYCY............... duty cycleDUM .................. dum .................... dummyDUMR ................ DUMR ................ dust and moistureDUNC................. DUNC................. deep underwater measuring deviceDUNC................. DUNC................. deep underwater nuclear counterDUP ................... dup ..................... duplicateDUT ................... DUT ................... device under testDVBD................. DVBD................. diesel v-belt driveDVC ................... dvc ..................... deviceDVL ................... dvl ...................... develop



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August, 2003

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DVM................... DVM...................digital voltmeterDVR ................... dvr ......................diverDVTL ................. dvtl .....................dovetailDW..................... dw ......................dishwasherDW..................... DW.....................distilled waterDW..................... DW.....................double weightDW..................... dw ......................dumbwaiterDWD .................. DWD...................dumbwaiter doorDWEL................. dwel ....................dwellingDWG .................. dwg.....................drawingDWL................... DWL...................designed waterlineDWL................... DWL...................dominant wavelengthDWL................... dwl .....................dowelDWLFBD ............ DWLFBD.............double-wall fiberboardDWN .................. dwn.....................drawnDWR................... dwr .....................drawerDWS................... DWS ...................drop wood sidingDWT................... dwt .....................deadweightDWT................... dwt .....................pennyweightDX ..................... dx .......................duplexDXE ................... DXE....................data transmitting equipmentDYB ................... DYB ...................dynamic breakingDYG ................... dyg .....................dryingDYHR................. dyhr ....................dehydratorDYN ................... dyn .....................dynamicDYN ................... dyn .....................dynamoDYNM ................ dynm...................dynamotorDYNMT .............. dynmt ..................dynamiteDYNMT .............. dynmt ..................dynamometer

EE ........................ E ........................emitter [electron device]EA...................... ea .......................eachEAROM .............. EAROM...............electronically alterable read-only memoryEAS .................... EAS ....................equivalent airspeedEAX ................... EAX....................electronic automatic exchangeEBASB................ ebasb ...................ebony asbestosEBCDIC .............. EBCDIC ..............expanded binary-coded decimal interchange codeECA.................... ECA....................equipment condition analysisECC.................... ecc ......................eccentricECC.................... ECC ....................error correction codeECCM................. ECCM .................electronic counter-countermeasuresECCSL ................ ECCSL ................emitter-coupled current-steered logicECD.................... ECD....................estimated completion dateECDC ................. ECDC..................electrochemical diffused collectorECG.................... ECG....................electrocardiogramECG.................... ECG....................electrocardiographECH.................... ech......................echelonECL .................... ECL ....................emitter-coupled logicECM ................... ECM ...................electronic countermeasuresECME ................. ECME .................electronic countermeasures environmentECMP ................. ECMP .................electronic countermeasures programECN.................... ECN....................engineering change notice



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August, 2003

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ECN ................... ECN.................... equipage category numberECO ................... ECO.................... electron-coupled oscillatorECO ................... ECO.................... electronic checkoutECO ................... ECO.................... engineering change orderECON ................. econ .................... economizeECP.................... ECP .................... engineering change proposal ECECR ................... ECR.................... engineering change requestECS.................... ECS .................... Emergency Coolant SystemECSW................. ECSW ................. end cell switchECWIRE ............. ECWIRE.............. extra control wireED ..................... ED...................... engine driveEDA ................... EDA ................... electronic digital analyzerEDDD................. EDDD ................. expanded direct distance dialingEDE.................... EDE.................... emergency decelerating [relay]EDFA ................. EDFA.................. electronic differential analyzerEDGW ................ edgw ................... edgewiseEDM................... EDM................... electrical discharge machiningEDO ................... EDO ................... effective diameter of objectiveEDP.................... EDP.................... electronic data processingEDR ................... EDR.................... equivalent direct radiationEDSK ................. EDSK.................. engineering department sketchEDT.................... EDT.................... electric discharge tubeEDUC ................. educ .................... educationEDUC ................. educ .................... educatorEDUC ................. educ .................... eductorEDYNMT ............ EDYNMT ............ electric dynamometerEE...................... EE ...................... end to endEEG.................... EEG.................... electroencephalogramEEG.................... EEG.................... electroencephalographEF ...................... EF ...................... each faceEF ...................... EF ...................... emitter followerEF ...................... EF ...................... extra fine [threads]EFC.................... EFC .................... engineering field changeEFF .................... eff ...................... effectiveEFF .................... eff ...................... efficiencyEFFL .................. effl...................... effective focal lengthEFL .................... EFL .................... effective focal lengthEFL .................... efl....................... effluentEFL .................... EFL .................... equivalent focal lengthEFT .................... eft....................... effectEFT .................... EFT .................... electronic funds transferEG ..................... eg ....................... for exampleEGD ................... egd ..................... electrogasdynamicsEGO ................... EGO ................... eccentric-orbit geophysical observatoryEGRD ................. EGRD ................. eye guardEGT.................... EGT.................... exhaust gas temperatureEGV ................... EGV ................... exit guide vaneEHF.................... EHF.................... end halfEHF.................... EHF.................... extremely high frequencyEHW .................. EHW................... extreme high waterEI....................... EI ....................... electronic interfaceEI....................... EI ....................... equip and installEIDLT ................ eidlt .................... emergency identification light



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August, 2003

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EJCTR................. elctr.....................ejectorEJN..................... ejn ......................ejectionEJNST................. EJNST .................ejection seatEL ...................... EL ......................each layerEL ...................... EL ......................elastic limitEL ...................... el ........................electroluminescentEL ...................... el ........................elevationEL ...................... EL ......................eye lensELAS .................. elas .....................elasticELAS .................. elas .....................elasticityELB .................... elb ......................elbowELCTC................ ELCTC ................electric contactELCTCBR............ ELCTCBR............electric contact brushELCTD................ elctd ....................electrodeELCTLT .............. elctlt ....................electrolyteELCTLT .............. elctlt ....................electrolyticELCTRG.............. ELCTRG..............electric contact ringELCTRN.............. elctrn ...................electronELEC .................. elec .....................electricELECTC.............. ELECTC ..............electronic controlELEK.................. elek .....................electronicELEM ................. elem ....................elementELEM ................. elem ....................elementaryELEV.................. elev .....................elevateELEV.................. elev .....................elevatorELEX.................. elex .....................electronicsELF .................... ELF.....................extremely low frequencyELHYD ............... elhyd ...................electrohydraulicELIM .................. elim.....................eliminateELINT................. ELINT .................electronic intelligenceELMCH............... ELMCH ...............electromechanicalELNG ................. elng.....................elongateELONG ............... elong ...................elongationELP .................... elp ......................ellipticalELPC .................. ELPC ..................electroluminescent-photoconductiveELPH .................. ELPH ..................elliptical headELPNEU.............. elpneu..................electropneumaticELV.................... ELV ....................electrically operated valveELW ................... ELW ...................extreme low waterEM ..................... em ......................electromagneticEM ..................... EM .....................enlisted menEM ..................... EM .....................epitaxial mesaEM ..................... EM .....................expanded metalEMB ................... emb.....................embossEMD................... EMD ...................electric-motor drivenEMER ................. emer....................emergencyEMF ................... EMF....................electromotive forceEMI .................... EMI ....................electromagnetic interferenceEMINT................ EMINT ................electromagnetic intelligenceEMP ................... emp.....................empennageEMPL ................. empl....................employeeEMPS.................. EMPS..................emergency power supplyEMSN ................. emsn ...................emission



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August, 2003

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EMT ................... EMT ................... electrical metallic tubingEMTR................. emtr .................... emitterEMU................... emu .................... emulatorEMUL................. emul.................... emulsionENAM ................ enam ................... enamelENBL ................. enbl .................... enableENCAP ............... encap .................. encapsulationENCD ................. encd .................... encodeENCDR............... encdr................... encoderENCL ................. encl..................... encloseENCL ................. encl..................... enclosureENCSD ............... encsd................... encasedENG ................... eng ..................... engineENG ................... Eng..................... EnglishENGA................. enga .................... engageENGA................. enga .................... engagingENGR ................. engr .................... engineerENGRG............... engrg................... engineeringENGRM .............. ENGRM .............. engine roomENGRV............... engrv................... engraveENGV................. ENGV ................. engine v-beltENGY................. engy.................... energyENLG ................. enlg .................... enlargeENLGD............... enlgd................... enlargedENRGZ ............... enrgz................... energizeENSI................... ENSI................... equivalent-noise-sideband inputENTC ................. ENTC.................. engine negative torque controlENTR ................. entr ..................... entranceENUM ................ enum................... enumerationENV ................... env ..................... envelopeENVIR................ envir ................... environmentENVIR................ envir ................... environmentalEO ..................... EO...................... engine oilEO ..................... EO...................... engineering orderEO ..................... EO...................... ethylene oxideEOC ................... EOC.................... edge of cutterEOD ................... EOD ................... explosive ordnance disposalEOLM................. EOLM................. electro optical light modulatorEOP.................... EOP.................... end of partEOR ................... EOR.................... engine orderEOT.................... EOT.................... end of tapeEOT.................... EOT.................... end of transmission [computers]EP ...................... EP ...................... electrically polarized [relay]EP ...................... EP ...................... epitaxial planarEP ...................... EP ...................... explosion-proofEPBX.................. EPBX.................. electronic private branch exchangeEPD.................... EPD.................... electric power and distributionEPL .................... epl ...................... electroplateEPO.................... EPO.................... engine propeller orderEPROM............... EPROM............... erasable programmable read-only memoryEPS .................... EPS .................... electric power supplyEPT .................... EPT .................... external pipe threadEPWR................. EPWR ................. emergency power



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August, 2003

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EQ...................... eq .......................equationEQFL .................. eqfl .....................equivalent focal lengthEQL.................... eql ......................equalEQL.................... eql ......................equalizerEQL.................... eql ......................equallyEQLSP ................ eqlsp ...................equally spacedEQPT .................. eqpt.....................equipmentEQUIL ................ equil ....................equilibriumEQUIV ................ equiv ...................equivalentER...................... ER ......................echo rangingER...................... ER ......................electrical resistanceER...................... ER ......................emergency roomERCG ................. ercg.....................erectingERCR.................. ercr .....................erectorERECT................ erect ....................erectionERN.................... ERN....................engineering release noticeERRC.................. ERRC..................error correctionERS .................... ers.......................erasedES ...................... ES ......................echo soundingES ...................... ES ......................electronic switchingES ...................... es........................electrostaticES ...................... ES ......................equal sectionESA .................... ESA ....................engineering support activityESAR.................. ESAR ..................electronically steerable array radarESC .................... esc ......................escapeESC .................... esc ......................escutcheonESD .................... ESD ....................electrostatic dischargeESD .................... esd ......................electrostatic dischargeESDS .................. esds.....................electrostatic discharge sensitiveESK .................... ESK ....................engineering sketchESOS .................. ESOS ..................electrostatic discharge resistiveESP .................... ESP.....................equipment and spare partsESP .................... esp ......................especiallyESPAR ................ ESPAR ................electronically steerable phased array radarESPEC ................ ESPEC.................electrical specificationESR .................... ESR ....................equivalent series resistanceESS .................... ESS.....................electronics switching systemESS .................... ESS.....................emergency ship serviceESS .................... ess ......................electrostatic sensitiveEST .................... EST.....................electrostatic storage tubeEST .................... est.......................estimateESTD .................. ESTD ..................electronic standardESTN .................. estn .....................endstoneET ...................... ET ......................edge thicknessET ...................... ET ......................elapsed timeET ...................... ET ......................electrical timeETC .................... etc.......................and so forthETC .................... etc.......................et ceteraETCG.................. ETCG..................elapsed-time code generatorETDT.................. ETDT ..................extrusion trim and drill templateETS .................... ETS.....................endless tangent screwETSQ .................. ETSQ ..................electrical time, superquickETT .................... ETT ....................extrusion trim template



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August, 2003

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EVAC ................. evac .................... evacuateEVAC ................. evac .................... evacuatorEVAL ................. eval..................... evaluateEVAP ................. evap .................... evaporateEVAP ................. evap .................... evaporatorEVLTN ............... evltn.................... evaluationEVM................... EVM................... electronic voltmeterEVOM ................ EVOM................. electronic voltohmmeterEVRLK ............... evrlk ................... ever-lockEW..................... EW ..................... each wayEW..................... EW ..................... electronic warfareEWASER............. EWASER............. electromagnetic wave amplification by stimulated emission of radiationEWB................... EWB................... embedded wiring boardEWC................... EWC................... electric water coolerEWO .................. EWO................... engineering work orderEX ..................... ex ....................... exampleEX ..................... ex ....................... extraEXAM ................ exam ................... examinationEXC ................... exc...................... excavateEXC ................... exc...................... excellentEXC ................... exc...................... exceptEXC ................... exc...................... excitationEXCH ................. exch .................... exchangeEXCL ................. excl..................... exclusiveEXCSV ............... excsv................... excessiveEXCTR ............... exctr.................... exciterEXEC ................. exec .................... executeEXEC ................. exec .................... executiveEXER ................. exer .................... exerciseEXH ................... exh ..................... exhaustEXH ................... exh ..................... exhibitEXHV................. EXHV ................. exhaust ventEXP.................... exp ..................... expandEXP.................... exp ..................... expansionEXP.................... exp ..................... expenseEXP.................... exp ..................... experimentEXP.................... exp ..................... experimentalEXP.................... exp ..................... exposedEXP.................... exp ..................... expressEXP.................... exp ..................... expulsionEXPED ............... exped .................. expediteEXPEN ............... expen .................. expendableEXPJT ................ expjt.................... expansion jointEXPL.................. expl .................... explanationEXPLD ............... expld................... explodeEXPLN ............... expln................... explosionEXPLTN ............. expltn .................. exploitationEXPNT ............... expnt................... exponentEXPNT ............... expnt................... exponentialEXPO ................. EXPO.................. experimental orderEXPSR................ expsr ................... exposureEXST.................. exst..................... existingEXT.................... ext ...................... extension



Documentation


August, 2003

Drawing Text Term


EXT.................... ext ......................exteriorEXT.................... ext ......................externalEXT.................... ext ......................extinguishEXTD ................. extd.....................extrudeEXTG ................. extg.....................extractingEXTM................. extm....................extremeEXTND ............... extnd ...................extenderEXTR.................. extr .....................extractorEXTRN ............... extrn....................extrusionEYLT.................. eylt .....................eyeletEYPC.................. eypc ....................eyepiece

FF ........................ F ........................FahrenheitF ........................ F ........................fighter [aircraft]F ........................ F ........................flat-band metallicarmor [insul]F ........................ F ........................flintF ........................ F ........................forceF ........................ f .........................frequency (comb form)F ........................ F ........................ interceptor [aircraft]F1S..................... F1S .....................finish one sideF2S..................... F2S .....................finish two sidesFA...................... FA ......................field artilleryFA...................... FA ......................final assemblyFA...................... FA ......................fore and aftFA...................... FA ......................free apertureFAB.................... fab ......................fabricateFAB.................... fab ......................first-aid boxFABL.................. FABL ..................fire alarm bellFABWH .............. FABWH...............flush armor balance watertight hatchFABX ................. FABX..................fire alarm boxFAC.................... fac ......................factorFAC.................... FAC ....................field acceleratorFACIL................. facil.....................facilityFACT.................. FACT ..................factual complierFACT.................. FACT ..................fully automatic compiler-translatorFAIR................... fair......................fairingFAM ................... fam .....................familiarFAO.................... FAO....................finish all overFARATIO ............ faratio ..................fuel-air ratioFAS .................... FAS ....................fueling-at-seaFAST .................. FAST ..................fast automatic shuttle transferFATR.................. FATR ..................fixed autotransformerFAX.................... fax ......................facsimileFB ...................... FB ......................fire and bilgeFB ...................... FB ......................flat barFB ...................... FB ......................fuse blockFBCK.................. fbck.....................firebrickFBDC.................. FBDC..................fiberboard, corrugatedFBDS .................. FBDS ..................fiberboard, solidFBM ................... FBM ...................board foot [measure]FBM ................... FBM ...................fleet ballistic missileFBM ................... FBM ...................foot board measure



Documentation


August, 2003

Drawing Text Term


FBR.................... FBR.................... feedback resistanceFBR.................... FBR.................... fiberFBRBD ............... fbrbd ................... fiberboardFBRS.................. fbrs ..................... fibrousFBT.................... FBT .................... form block templateFBT.................... FBT .................... forward ballast tankFC...................... FC ...................... file cabinetFC...................... FC ...................... fire controlFC...................... fc ....................... fireclayFC...................... fc ....................... footcandleFC...................... FC ...................... front connectionFC...................... FC ...................... front-connectedFCA ................... FCA.................... functional configuration auditFCB.................... FCB.................... free-cutting brassFCG ................... fcg...................... facingFCRLS................ FCRLS ................ Flight Control Ready Light SystemFCS .................... FCS .................... Fire Control SystemFCSG.................. fcsg..................... focusingFCSLE ................ fcsle .................... forecastleFCT.................... FCT .................... filament center tapFCTN.................. fctn ..................... functionFCTY.................. fcty ..................... factoryFD...................... FD...................... face or field of drawingFD...................... FD...................... flange focal distanceFD...................... FD...................... floor drainFD...................... FD...................... forced-draftFD...................... FD...................... frequency divisionFD...................... FD...................... front of dashFD...................... fd ....................... floppy discFDB ................... FDB.................... field dynamic brakingFDB ................... FBD.................... forced-draft blowerFDBK ................. fdbk .................... feedbackFDBLR ............... FDBLR................ frequency doublerFDC ................... FDC.................... fire department connectionFDE.................... FDE.................... field deceleratorFDF.................... FDF .................... fuel and defuelingFDFL.................. FDFL .................. fluid flowFDI..................... FDI..................... field dischargeFDM................... FDM ................... frequency division multiplexFDN ................... FDN.................... foundationFDP.................... FDP .................... full dog pointFDPL.................. FDPL .................. fluid pressure lineFDR ................... fdr ...................... feederFDR ................... fdr ...................... finderFDR ................... FDR.................... fire doorFDRY ................. fdry..................... foundryFDSVC ............... FDSVC................ food serviceFDTT.................. FDTT.................. full duplex teletypeFDW................... fdw ..................... feedwaterFDWL................. FDWL................. fiberboard, double wallFEB.................... Feb ..................... FebruaryFEB.................... feb...................... functional electronic blockFED.................... Fed ..................... Federal



Documentation


August, 2003

Drawing Text Term


FELR .................. felr......................feelerFEM ................... fem .....................femaleFER .................... FER ....................forward engine roomFERCON ............. fercon ..................ferrule-contactFET .................... FET.....................field-effect transistorFEXT .................. FEXT ..................fire extinguisherFF ...................... FF.......................face to faceFF ...................... FF.......................file finishFF ...................... FF.......................fire and flushingFF ...................... FF.......................fire fightingFF ...................... FF.......................flip-flopFF ...................... ff ........................followingFF ...................... FF.......................full fieldFFAR .................. FFAR ..................folding-fin aircraft rocketFFC .................... FFC.....................flip-flop complementaryFFD .................... FFD ....................field forcing [decreasing]FFI ..................... FFI......................field forcing [increasing]FFILH ................. FFILH .................flat fillister headFFL .................... FFL.....................female flaredFFL .................... FFL.....................field failureFFL .................... FFL.....................flip-flop latchFFL .................... FFL.....................front focal lengthFFT .................... FFT.....................fast Fourier transformFG...................... FG ......................filament groundFGD.................... fgd ......................forgedFGR.................... fgr.......................fingerFGY.................... fgy ......................foggyFH...................... FH ......................fire hoseFH...................... FH ......................full hardFHC.................... FHC ....................fire-hose cabinetFHR.................... FHR ....................fire hose rackFHT .................... fht.......................fully heat-treatedFHY.................... FHY....................fire hydrantFIC ..................... FIC .....................frequency interference controlFIFO ................... FIFO ...................first-in-first-outFIG..................... fig.......................figureFIL ..................... fil .......................filamentFIL ..................... fil .......................filletFIL ..................... fil .......................fillisterFIL ..................... FIL .....................fuel injection lineFILH................... FILH ...................fillister headFILL ................... fill.......................fillingFIM .................... FIM.....................full indicator movementFIP ..................... FIP......................fuel injection pumpFIR ..................... FIR .....................fuel indicator readingFIR ..................... fir .......................full indicator readingFIS ..................... FIS......................floating-point instruction setFIT ..................... FIT .....................fault isolation testFKD.................... FKD....................forkedFL ...................... fl ........................filter (comb form)FL ...................... fl ........................flashingFL ...................... fl ........................flood [vent]FL ...................... fl ........................floor



Documentation


August, 2003

Drawing Text Term


FL ...................... FL ...................... floor lineFL ...................... fl ........................ fluidFL ...................... fl ........................ flushFL ...................... FL ...................... flute leadFL ...................... FL ...................... focal lengthfL....................... fL ....................... footlambertFL ...................... FL ...................... flagnote (number)FLA.................... fla....................... full-load amperesFLD.................... fld ...................... fieldFLDG ................. fldg..................... foldingFLDK ................. FLDK.................. flight deckFLDNG ............... fldng ................... floodingFLDO ................. FLDO.................. final limit, downFLDT.................. fldt...................... floodlightFLEA.................. FLEA.................. flux logic element arrayFLEX.................. flex ..................... flexibleFLEX.................. flex ..................... flexureFLF .................... FLF .................... final limit, forwardFLG.................... flg ...................... flangeFLG.................... flg ...................... flooringFLGSTF .............. flgstf ................... flagstaffFLGSTN.............. flgst .................... flagstoneFLH.................... FLH.................... final limit, hoistFLH.................... FLH.................... flat headFLHLS................ flhls .................... flashlessFLIDEN .............. FLIDEN............... flight data entryFLKD ................. flkd..................... flukedFLL .................... FLL .................... final limit, lowerFLL .................... FLL .................... flow lineFLLD.................. flld...................... full loadFLM ................... flm...................... flameFLMB ................. flmb.................... flammableFLMPRF ............. flmpr................... flameproofFLMPRS ............. FLMPRS.............. film processingFLMRES ............. FLMRE ............... flame resistantFLMRTD............. FLMRTD............. flame retardantFLMSD ............... FLMSD ............... film soundFLMT ................. FLMT ................. flush mountFLMTT ............... flmtt.................... flametightFLN.................... fln ...................... flattenFLN.................... fln ...................... fuel lineFLNG ................. flng..................... fuelingFLOCOM ............ FLOCOM............. floating commutatorFLOT.................. flot...................... flotationFLPR .................. flpr ..................... flapperFLR.................... flr ....................... failureFLR.................... flr ....................... fillerFLR.................... FLR .................... final limit, reverseFLRD.................. flrd ..................... flaredFLRG.................. FLRG.................. flaringFLRT.................. FLRT .................. flow rateFLRY.................. flry ..................... flurryFLSP .................. FLSP................... flight space



Documentation


August, 2003

Drawing Text Term


FLSW ................. FLSW..................flow switchFLT .................... flt .......................faultFLT .................... flt .......................flashlightFLT .................... flt .......................flightFLT .................... flt .......................floatFLTD .................. fltd......................flutedFLTG .................. fltg......................floatingFLTP................... FLTP...................flush typeFLTR .................. FLTR ..................filterFLU .................... FLU ....................final limit, upFLUOR................ fluor ....................fluorescentFLUSOC.............. FLUSOC..............fluted socketFLUSOCH ........... FLUSOCH............fluted socket headFLUT .................. flut......................flutterFLW ................... FLW ...................flash weldingFLW ................... FLW ...................flat washerFLWK................. FLWK .................flat workFLWP ................. flwp ....................follow-upFLYWHL............. flywhl ..................flywheelFLYWT ............... flywt ...................flyweightFM ..................... FM......................field manualFM ..................... FM......................fire mainFM ..................... FM......................frequency modulationFMAN................. fman....................foremanFMR ................... FMR ...................frequency modulated radarFMS.................... FMS....................floating machine shopFMS.................... FMS....................freemachining steelFMT ................... FMT....................flush metal thresholdFMW .................. fmw ....................firmwareFN...................... FN ......................find numberFN...................... FN ......................flat nose [projectile]FNH.................... FNH....................flashless nonhygroscopicFNI..................... FNI .....................fan inFNO.................... FNO....................fan outFNPT .................. FNPT ..................fusion pointFNSH.................. fnsh.....................finishFO...................... FO ......................fast operate [relay]FO...................... FO ......................flat ovalFO...................... fo........................foldoutFO...................... FO ......................fuel oilFOB.................... FOB ....................free on boardFOB.................... FOB ....................front of boardFOC.................... foc ......................focalFOC.................... foc ......................focusFOD.................... FOD....................foreign object damageFOFM ................. FOFM .................fog foamFOL .................... fol.......................followFOLQ.................. FOLQ..................foam liquidFOP .................... FOP ....................fuel oil pumpFORG ................. forg .....................forgingFORM................. form ....................formationFORM................. form ....................formulaFORTRAN ........... FORTRAN ...........formula translation



Documentation


August, 2003

Drawing Text Term


FOSGEN ............. FOSGEN ............. fog oil smoke generatorFOT.................... FOT.................... frequency of optimum operationFOT.................... FOT.................... fuel-oil transferFOVH ................. FOVH ................. flush oiltight ventilation holeFOY ................... foy...................... foyerFP ...................... FP ...................... flat patternFP ...................... FP ...................... faceplateFP ...................... FP ...................... feedback positiveFP ...................... FP ...................... field protectiveFP ...................... fp ....................... fireplaceFP ...................... FP ...................... flat pointFP ...................... fp ....................... forepeakFP ...................... FP ...................... forward perpendicularFP ...................... FP ...................... freezing pointFP ...................... FP ...................... fungus proofFPI ..................... FPI ..................... fluorescent penetrant inspectionFPL .................... fpl ...................... fire plugFPM ................... FPM.................... foot per minuteFPOT.................. FPOT .................. feedback potentiometerFPPR .................. fppr..................... fishpaperFPRF .................. fprf ..................... fireproofFPS .................... FPS..................... foot per secondFPS .................... FPS..................... foot-pound-secondFPT .................... FPT .................... female pipe threadFPTS .................. FPTS................... forward propagation tropospheric scatterFR...................... FR ...................... failure rateFR...................... FR ...................... fast release [relay]FR...................... FR ...................... field reversingFR...................... fr ........................ frameFR...................... fr ........................ frontFRAC ................. frac ..................... fractionalFRAG ................. frag..................... fragmentFRAG ................. frag..................... fragmentationFRBEL................ frbel .................... from belowFREEBD ............. freebd.................. freeboardFREQ.................. freq..................... frequencyFREQCHG........... freqchg ................ frequency changerFREQCONV ........ freqconv............... frequency converterFREQM............... FREQM............... frequency meterFRES .................. FRES .................. fire-resistantFRFY.................. frfy ..................... french fryFRHGT ............... FRHGT ............... free heightFRICT................. frict..................... frictionFRM ................... frm ..................... fire roomFRMR................. frmr .................... formerFRNG ................. frng..................... fringeFRT.................... frt ....................... freightFRTN.................. frtn ..................... front endFRWK ................ frwk.................... frameworkFRZR.................. frzr ..................... freezerFS ...................... FS ...................... far sideFS ...................... FS ...................... Federal SpecificationFS ...................... FS ...................... female soldered



Documentation


August, 2003

Drawing Text Term


FS ...................... FS.......................field serviceFS ...................... FS.......................finish specification [number]FS ...................... FS.......................fin-stabilizedFS ...................... FS.......................fire stationFS ...................... FS.......................foreign serviceFS ...................... fs ........................foresightFS ...................... FS.......................freight supply [vessel]FS ...................... fs ........................full sizeFS ...................... FS.......................functional schematicFS ...................... FS.......................fuselage stationFS ...................... FS.......................sulfur trioxide chlorsulfonic acidFSBL .................. fsbl .....................feasibleFSBL .................. fsbl .....................fusibleFSBLCUT............ fsblcut..................fusible cutoutFSC .................... fsc.......................full scaleFSCIL ................. FSCIL .................Federal Supply Catalog Identification ListFSCM ................. FSCM..................Federal Supply Code for ManufacturersFSE .................... FSE.....................field support equipmentFSK .................... FSK ....................frequency-shift keyingFSMWO .............. FSMWO ..............field service modification work orderFSN .................... FSN ....................Federal Stock NumberFSN .................... FSN ....................fuel service nozzleFSSN .................. fssn .....................fissionFST .................... FST.....................forged steelFSTNR ................ fstnr ....................fastenerFSW ................... FSW....................field switchFSW ................... FSW....................frame synchronization wordFT ...................... FT ......................flush thresholdFT ...................... ft ........................footFT ...................... FT ......................frequency trackerFT ...................... ft ........................fumetightFT ...................... ft ........................functional testFTC .................... FTC ....................fast time constantFTD .................... ftd.......................fittedFTF .................... FTF.....................flared tube fittingFTFGS ................ FTFGS.................flared tube fitting gasket sealFTG .................... ftg.......................fittingFTG .................... ftg.......................footingFTHRD................ FTHRD................female threadFTI ..................... FTI .....................frequency time indicatorFTK .................... FTK ....................fuel tankFTLB .................. FTLB ..................foot pound forceFTP .................... FTP.....................fuel transfer pumpFTR .................... ftr .......................featherFTR .................... FTR ....................fixed transomFTR .................... FTR ....................flat tile roofFTR .................... ftr .......................functional test requirementFTT .................... FTT.....................flat trim templateFTTW ................. FTTW..................desk, combination flat-top and typewriterFUBX ................. FUBX..................fuse boxFUHLR................ fuhlr ....................fuse holderFUJ..................... FUJ .....................front upset jawFUL .................... ful.......................fulcrum



Documentation


August, 2003

Drawing Text Term


FUND ................. fund .................... fundamentalFUNL ................. funl..................... funnelFUR ................... fur ...................... furnaceFURN ................. furn..................... furnishFURN ................. furn..................... furnitureFUSLG................ fuslg.................... fuselageFUT.................... fut ...................... futureFV...................... FV...................... flush valueFV...................... FV...................... front viewFV...................... fv ....................... full voltageFVD ................... FVD.................... front vertex back focal distanceFW..................... FW ..................... face widthFW..................... FW ..................... fire wallFW..................... FW ..................... fresh waterFW..................... fw....................... full waveFWD................... fwd ..................... forwardFWDCT............... FWDCT............... fresh water drain collecting tankFWK................... FWK................... field weakeningFWP ................... FWP ................... feedwater pumpFWP ................... FWP ................... fresh water pumpFWPLN............... FWPLN ............... fairwater planesFXD ................... fxd...................... fixedFXP.................... FXP .................... fixed pointFXTR.................. fxtr ..................... fixtureFY...................... FY...................... fiscal yearFYIG .................. FYIG .................. for your information and guidanceFZ ...................... fz ....................... fuzeFZSTO................ fzsto.................... frozen storage

GG ....................... G........................ gate [electron device]G ....................... g ........................ girderG ....................... g ........................ gramG ....................... g ........................ gravityG ....................... g ........................ greenG ....................... g ........................ grounded [outlet]GA ..................... ga ....................... gage (gauge)GA ..................... GA ..................... gas amplificationGA ..................... GA ..................... glide angleGA ..................... GA ..................... graphic ammeterGA ..................... GA ..................... ground-to-airGABD................. GABD................. gage boardGAL ................... gal ...................... gallonGALL ................. gall ..................... galleryGALV................. galv .................... galvanicGALV................. galv .................... galvanizeGALVI................ galvi.................... galvanized ironGALVND ............ galvnd ................. galvannealedGALVNM............ galvnm ................ galvanometerGALVS ............... galvs ................... galvanized steelGALY................. galy .................... galleyGAM .................. GAM .................. guided aircraft missileGAR ................... gar ...................... garage



Documentation


August, 2003

Drawing Text Term


GAR ................... GAR ...................guided aircraft rocketGARBD............... garbd ...................garboardGAS.................... gas ......................gasolineGASW................. GASW.................gas weldGBG ................... gbg .....................garbageGCA ................... GCA ...................ground-controlled approachGCC ................... GCC....................ground control centerGCD ................... gcd......................greatest common divisorGCI..................... GCI.....................ground-controlled interceptionGCMPS ............... gcmps..................gyrocompassGCN ................... GCN ...................gage code numberGCRG ................. GCRG .................gun carriageGCWR ................ gcwr....................gross combined weight ratingGD ..................... GD......................graphic demand meterGD ..................... GD......................ground detectorGD ..................... GD......................grown diffusedGD ..................... gd .......................guardGDE ................... gde......................guideGDE ................... gde......................guidedGDLK ................. GDLK .................grid leakGDNC................. gdnc ....................guidanceGDOP ................. GDOP..................geometric dilution of precisionGDR ................... GDR ...................guard railGE...................... GE ......................gas ejectionGECC ................. GECC..................gasoline engine, close-coupledGED ................... GED....................gasoline-engine drivenGEN ................... gen......................generationGEN ................... gen......................generatorGENCONT........... gencont ................general contractorGENG ................. geng ....................gasoline engineGENL ................. genl.....................generalGEOL ................. geol.....................geologicalGEOMAG............ geomag ................geomagnetismGFAE.................. GFAE..................government-furnished aircraft equipmentGFD.................... GFD....................gap-filler dataGFE .................... GFE ....................government-furnished equipmentGFF .................... GFF ....................granolithic finish floorGFI..................... GFI .....................ground-fault interrupterGFLD.................. gfld .....................generator fieldGFM ................... GFM ...................government-furnished materialGFP .................... GFP ....................government-furnished partsGFP .................... GFP ....................government-furnished propertyGFU.................... GFU....................glazed facing unitGG ..................... GG......................ground-to-groundGGL ................... GGL....................ground glassGI....................... gi........................gray ironGIDEP................. GIDEP.................Government-lndustry Data Exchange ProgramGIGO .................. GIGO ..................garbage in, garbage outGIL..................... GIL.....................green indicating lampGIRLS................. GIRLS .................Generalized Information Retrieval and Listing SystemGIT..................... GIT.....................graph isomorphism testerGJ ...................... GJ.......................grown junctionGL...................... gl........................glass



Documentation


August, 2003

Drawing Text Term


GL ..................... GL...................... grade lineGL ..................... GL...................... green lightGLB ................... glb ...................... glass blockGLD ................... gld ...................... goldGLE.................... GLE.................... government-loaned equipmentGLI .................... gli....................... gliderGLOSS................ gloss ................... glossaryGLPG ................. glpg .................... glow plugGLS.................... GLS.................... glide slopeGLT.................... glt....................... guide lightGLTN ................. gltn ..................... guillotineGLV ................... GLV ................... globe valveGLWB ................ glwb.................... glazed wallboardGLYCN............... glycn................... glycerinGLZ.................... glz ...................... glazeGM..................... gm...................... gaseous mixtureGM..................... GM..................... geometric meanGM..................... GM..................... guided missileGM..................... gm...................... metacentric heightGMBL ................ gmbl ................... gimbalGMC .................. GMC................... gun motor carriageGMCM................ GMCM................ guided missile countermeasuresGMET................. gmet.................... gun metalGMLDG .............. gmldg.................. garnish moldingGMR .................. GMR................... ground mapping radarGMT................... GMT................... Greenwich mean timeGMTRY .............. gmtry .................. geometryGMV .................. GMV .................. guaranteed minimum valueGN ..................... GN ..................... general note (number)GND................... gnd ..................... groundGNLTD............... gnltd ................... granulatedGNOZ................. GNOZ ................. grease nozzleGNP ................... GNP.................... gas, nonpersistentGOE ................... GOE ................... ground operation equipmentGOPR ................. GOPR ................. gas operatedGOR ................... GOR ................... general operational requirementGOV................... gov ..................... governorGOVG ................ govg.................... governingGOVT................. govt .................... governmentGOX................... gox ..................... gaseous oxygenGP...................... GP...................... gang punchGP...................... GP...................... gas, persistentGP...................... 9P....................... general purposeGP...................... GP...................... ground-protective [relay]GP...................... gp....................... groupGPC ................... gpc ..................... gypsum-plaster ceilingGPER.................. GPER.................. general plant equipment requirementsGPF.................... gpf...................... gasproofGPH ................... GPH.................... gallon per hourGPH ................... gph ..................... graphiteGPI..................... GPI..................... ground-position indicatorGPM................... GPM ................... gallon per minuteGPS.................... GPS .................... gallon per second



Documentation


August, 2003

Drawing Text Term


GPW................... gpw.....................gypsum-plaster wallGR...................... gr........................grab rodGR...................... gr........................gradeGR...................... gr........................grainGR...................... GR......................grid resistorGR...................... gr........................grossGRA ................... gra ......................grayGRAB ................. grab.....................grade abilityGRAD................. grad.....................gradientGRAN................. gran.....................graniteGRAN................. gran.....................granodizeGRB ................... GRB....................granolithic baseGRBX ................. grbx ....................gearboxGRC ................... grc ......................gearcaseGRD ................... grd ......................grindGRDL ................. grdl .....................griddleGRDTN ............... grdtn ...................graduationGRG ................... grg ......................gearingGRK ................... grk ......................gear rackGRL.................... grl.......................grilleGRLP.................. GRLP ..................ground lampGRN ................... grn ......................greenGROM ................ grom ...................grommetGRPH ................. grph ....................graphicGRS.................... grs ......................greaseGRSHFT.............. grshn ...................gear shaftGRTG ................. grtg .....................gratingGRTN ................. GRTN..................grid returnGRTR ................. grtr......................graterGRV ................... grv ......................grooveGRVA................. GRVA .................graphic varmeterGRVD................. grvd ....................groovedGRVG................. grvg ....................groovingGRVR ................. grvr .....................grooverGRWT................. GRWT.................gross weightGS ...................... GS ......................ground speedGSAP.................. GSAP ..................gunsight aiming pointGSB.................... GSB ....................gypsum sheathing boardGSBR.................. GSBR..................gravel-surface buildup roofGSE .................... GSE ....................ground support equipmentGSFU.................. GSFU ..................glazed structural facing unitGSIL................... GSIL ...................German silverGSKT.................. gskt .....................gasketGSS .................... GSS ....................Gamma Scintillation SystemGSU.................... GSU....................glazed structural unitsGSUB ................. GSUB..................glazed structural unit baseGSV.................... GSV....................globe stop valveGSWR................. GSWR .................galvanized-steel-wire ropeGT...................... gt........................gastightGT...................... GT ......................grease trapGTC.................... GTC....................gain time controlGTC.................... GTC....................gas turbine compressorGTL.................... GTL ....................government test laboratory



Documentation


August, 2003

Drawing Text Term


GTO ................... GTO ................... gate turnoffGTR ................... gtr ...................... garterGTRB ................. GTRB ................. gas turbineGTV ................... GTV ................... gate valveGUAR................. guar .................... guaranteeGUN................... gun ..................... gunneryGUS ................... gus ..................... gussetGUT ................... gut ...................... gutterGVA................... GVA ................... graphic kilovolt-ampere meterGVL ................... gvl ...................... gravelGVW .................. GVW .................. gross vehicle weightGWB .................. gwb .................... gypsum wallboardGWT .................. GWT................... glazed wall tileGWTB ................ GWTB................. glazed wall tile baseGY ..................... gy....................... grayGYM .................. gym .................... gymnasiumGYP ................... gyp ..................... gypsumGYRO................. gyro .................... gyroscopeGZ ..................... GZ...................... ground zeroGZ ..................... gz ....................... righting arm

HH ....................... h ........................ hatchH ....................... h ........................ head (comb form)H ....................... h ........................ horizontal (comb form)HA ..................... HA ..................... hardness assuranceHA ..................... HA ..................... high altitudeHAF ................... HAF.................... heavy aircraft fuelHAP ................... HAP.................... high-altitude platformHARN................. harn .................... harnessHARNLTHR ........ harnlthr................ harness leatherHARP ................. HARP ................. Halpern antiradar pointHATCDS............. HATCDS ............. high-altitude terrain contour data sensorHAV................... hav ..................... haversineHAZ ................... haz...................... hazardousHB ..................... hb....................... half breadthHB ..................... HB ..................... heavy-barrel [rifle]HB ..................... HB ..................... hose bibHBCN................. HBCN ................. hazard beaconHBPUMP............. HBPUMP............. hot brine pumpHC ..................... hc ....................... head and coverHC ..................... HC ..................... hand crankHC ..................... HC ..................... heating cabinetHC ..................... hc ....................... hexachlorethaneHC ..................... HC ..................... high capacity [projectile]HC ..................... HC ..................... high carbonHC ..................... HC ..................... holding coilHC ..................... HC ..................... hose clampHC ..................... HC ..................... hydraulic cleanHCG ................... HCG ................... horizontal location of center of gravityHCI .................... HCI .................... hardness-critical itemHCL ................... HCL.................... horizontal center lineHCN ................... HCN ................... hydrocyanic acid



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August, 2003

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HCONN............... HCONN...............hose connectorHCP.................... HCP ....................hardness-critical processHCS.................... HCS ....................high-carbon steelHCSHT................ HCSHT................high-carbon steel, heat-treatedHD ..................... hd .......................hand (comb form)HD ..................... HD......................harbor defenseHD ..................... HD......................harmonic distortionHD ..................... hd .......................head diameterHD ..................... HD......................heavy-dutyHD ..................... hd .......................hard discHDBK................. hdbk....................handbookHDCP ................. hdcp ....................handicapHDCR ................. HDCR .................hard chromiumHDDRN............... HDDRN...............hard-drawnHDG ................... hdg .....................headingHDL ................... hdl ......................handleHDLG ................. hdlg.....................handlingHDLS.................. hdls .....................headlessHDN ................... hdn .....................hardenHDNS ................. hdns ....................hardnessHDOV................. hdov....................hardoverHDR ................... hdr ......................headerHDSHK ............... hdshk...................handshake [computers]HDST.................. hdst .....................headsetHDW .................. hdw.....................hardwareHDWC ................ hdwc ...................hardware clothHDWD ................ hdwd ...................hardwoodHE...................... HE ......................heat exchangeHE...................... HE ......................high explosiveHEAA ................. HEAA .................high-explosive antiaircra1tHEAF.................. HEAF..................heavy end aviation fuelHEAP.................. HEAP..................high-explosive armor-piercingHEAT ................. HEAT..................high-explosive antitankHEDS.................. HEDS..................high-explosive discarding sabotHEI..................... HEI .....................high-explosive incendiaryHEIT................... HEIT ...................high-explosive incendiary with tracerHEMW................ HEMW ................hybrid electromagnetic waveHEP .................... HEP ....................high-explosive plasticHERA ................. HERA..................high-explosive rocket-assistedHERJ .................. HERJ...................high-explosive ramjetHES .................... HES ....................high-explosive spottingHEST .................. HEST ..................heat emergency service tanksHET.................... het ......................heterodyneHET.................... HET ....................high-explosive with tracerHEX ................... hex......................hexagonHEXHD............... hexhd ..................hexagonal headHEXSOC ............. hexsoc .................hexagonal socketHEXSOCH........... hexsoch................hexagonal socket headHF...................... HF ......................high frequencyHF...................... HF ......................holding fixtureHFB.................... HFB ....................hand form blockHFCUR ............... HFCUR................high-frequency currentHFD.................... HFD....................hydro-form die



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August, 2003

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HFMF ................. HFMF ................. hone-finish monolithic floorHFO ................... HFO.................... high-frequency oscillatorHFS.................... HFS .................... hyperfine structureHG ..................... HG ..................... harden and grindHGALV............... HGALV............... hot-galvanizeHGBN................. hgbn.................... herringboneHGC ................... hgc ..................... hypergolic cleanHGPS.................. HGPS.................. high-grade plow steelHGR ................... hgr...................... hangerHGSW ................ HGSW................. horn gap switchHGT ................... hgt ...................... heightHH ..................... hh....................... handholdHH ..................... hh....................... handholeHH ..................... HH ..................... heel to heelHIFI.................... HIFI.................... high fidelityHIHUM............... HIHUM ............... high humidityHIMP.................. HIMP.................. high impactHINT .................. HINT .................. high intensityHIPAR ................ HIPAR ................ high-power acquisition radarHIPOT ................ HIPOT................. high potentialHIPOTT .............. HIPOTT............... high-potential testHIR .................... HIR .................... horizontal impulse reactionHJ ...................... HJ ...................... hinge jawHKP ................... hkp ..................... hookupHL ..................... HL...................... hand lanternHL ..................... HL...................... heel lineHL ..................... hl ....................... highlineHL ..................... HL...................... hinge lineHLBR ................. HLBR ................. heel breasterHLBRD............... hlbrd ................... halberdHLCL ................. hlcl ..................... helicalHLCPS................ hlcps ................... helical compressionHLCPTR ............. hlcptr .................. helicopterHLDG................. hldg .................... holdingHLDN................. hldn .................... holddownHLDR ................. hldr..................... holderHLEXT ............... hlext.................... helical extensionHLFM................. hlfm.................... half-moonHLG ................... HLG ................... hot legHLL.................... HLL.................... high-level language [computers]HLNG................. hlng .................... headliningHLP.................... hlp ...................... helperHLSD ................. HLSD.................. heel sandingHLXA................. hlxa .................... helix angleHM..................... HM..................... hardness maintenanceHM..................... hm...................... hollow metalHMA .................. hma .................... hybrid microelectronic assemblyHMC .................. HMC................... howitzer motor carriageHMD .................. hmd .................... humidHMD .................. hmd .................... humidityHMDF ................ HMDF................. hollow metal door and frameHMG .................. HMG .................. heavy machine gunHMNC ................ hmnc................... harmonic



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August, 2003

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HMR................... hmr .....................hammerHNDCONT .......... hndcont ................hand controlHNDFBR ............. hndfbr..................horn fiberHNDGEN ............ hndgen.................hand generatorHNDRL ............... hndrl ...................hand railHNDRST ............. hndrst ..................hand resetHNDST ............... hndst ...................handsetHNDWL .............. hndwl ..................handwheelHNG ................... hng .....................hangingHNG ................... hng .....................hingeHNIL .................. HNIL...................high-noise-immunity logicHNTG ................. hntg.....................huntingHNYCMB............ hnycmb................honeycombHOGEN............... HOGEN ...............hold off generatorHOL ................... hol ......................hollowHOM................... hom.....................homingHON ................... hon .....................honoraryHORIZ ................ horiz....................horizontalHOSP.................. hosp ....................hospitalHOW .................. how.....................howitzerHP ...................... HP ......................high passHP ...................... HP ......................high pressureHP ...................... hp .......................horsepowerHP...................... HP ......................hot-pressHPB.................... HPB ....................hinged plotting boardHPFL .................. HPFL ..................highpass filterHPHR ................. HPHR..................horsepower-hourHPLR.................. HPLR ..................hinge pillarHPOT.................. hpot.....................helipotentiometerHPR.................... hpr ......................hopperHPS .................... HPS ....................high-pressure steamHPT .................... HPT ....................high pointHPT .................... HPT ....................high-pressure testHQ ..................... hq .......................headquartersHR...................... hr........................handling roomHR...................... HR......................hook railHR...................... HR......................hose rackHR...................... HR......................hot-rolledHR...................... hr........................hourHRL.................... HRL....................horizontal reference lineHRPO ................. HRPO..................hot-rolled, pickled and oiledHRS.................... HRS ....................hot-rolled steelHRZN ................. hrzn.....................horizonHS...................... HS ......................hardness surveillanceHS...................... HS ......................high speedHS...................... HS ......................hinged seatHS ...................... HS ......................horizon sensorHS ...................... HS ......................horizontal shearHSC.................... HSC ....................hermetic sealed containerHSC.................... HSC ....................horizon scannerHSD.................... HSD....................hot sideHSE .................... hse ......................houseHSG.................... hsg......................housing



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August, 2003

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HSHLD ............... hshld ................... householdHSR ................... HSR.................... high-speed readerHSS.................... HSS .................... high-speed steelHST.................... hst ...................... hoistHSTH ................. HSTH.................. hose threadHT ..................... ht ....................... halftoneHT ..................... HT...................... high tensionHT ..................... HT...................... hollow tileHT ..................... HT...................... horizontal tabulationHT ..................... HT...................... hot tinHTCI .................. HTCI .................. high-tensile cast ironHTD ................... htd ...................... heatedHTF.................... HTF.................... height findingHTG ................... htg ...................... heatingHTL.................... HTL.................... high-threshold logicHTM................... HTM................... high temperatureHTNSL ............... HTNSL................ high tensileHTR ................... htr ...................... heaterHTRES................ htres.................... heat-resistingHTRK ................. htrk..................... half-trackHTS.................... HTS .................... high-tensile steelHTS.................... HTS.................... high-tensile strengthHTSHLD ............. htshld .................. heat shieldHTSK ................. htsk..................... heat sinkHTTR ................. httr...................... heat-treatHV ..................... HV ..................... high voltageHVAP ................. HVAP ................. high-velocity, armor-piercingHVAP ................. HVAP ................. hypervelocity, armor-piercingHVAPDS............. HVAPDS ............. hypervelocity, armor-piercing discarding sabotHVAR................. HVAR................. high-velocity, aircraft rocketHVC ................... HVC ................... hardened voice circuitHVCH................. HVCH................. hardened voice channelHVR ................... HVR ................... high-voltage regulatorHVRNG .............. hvrng .................. hoveringHVSS.................. HVSS.................. horizontal volute spring suspensionHVTP ................. HVTP.................. high-velocity, target practiceHVTP ................. HVTP.................. hypervelocity, target practiceHVTPDS ............. HVTPDS ............. hypervelocity, target practice, discarding sabotHVY................... hvy ..................... heavyHW .................... HW..................... half waveHW .................... hw ...................... head windHW .................... HW..................... hot waterHW .................... hw ...................... howlerHWC .................. HWC .................. hot water, circulatingHWH .................. HWH .................. hot-water heaterHWL .................. HWL................... high-water lineHWL .................. hwl ..................... hotwellHWY .................. hwy .................... highwayHXWXL.............. HXWXL .............. height by width by lengthHYB ................... hyb ..................... hybridHYBMED............ HYBMED ............ hybrid microelectronic deviceHYDAPT............. HYDAPT............. hydrid digital-analog and pulse timeHYDM................ hydm................... hydrometer



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HYDR................. hydr ....................hydraulicHYDRELC........... hydrelc.................hydroelectricHYDRST ............. hydrst ..................hydrostaticHYDTD............... hydtd ...................hydratedHYP.................... hyp .....................hypotenuseHYPERB ............. hyperb .................hyperbolaHYPH ................. hyph....................hydrophoneHYPOTH ............. hypoth .................hypotheticalHz ...................... Hz.......................hertzHZMP ................. HZMP .................horizontal impulseHZRN ................. HZRN..................horizontal reaction

II ......................... I ......................... intrinsic (i)-type semiconductor materialIACS................... IACS...................International Annealed Copper StandardIAGC .................. IAGC .................. instantaneous automatic gain controlIAS..................... IAS ..................... indicated airspeedIAVC .................. IAVC .................. instantaneous automatic volume controlIAW.................... IAW.................... in accordance withIB....................... IB ....................... incendiary bombIB....................... IB ....................... inner bottomIB....................... IB ....................... instruction bookIB....................... IB ....................... ironing boardIBBM.................. IBBM .................. iron-body bronze-mountedIBCN .................. ibcn..................... identification beaconIBE..................... IBE ..................... inner back endIC....................... IC ....................... impulse conductorIC....................... IC ....................... instruction cardIC....................... IC ....................... integrated circuitIC....................... IC ....................... interior communicationIC....................... IC ....................... internal combustionIC....................... IC ....................... ion chamberICAS................... ICAS................... intermittent commercial and amateur serviceICBM.................. ICBM .................. intercontinental ballistic missileICBR................... icbr ..................... ice-cuberICD..................... ICD..................... interface control drawingICDRUM ............. ICDRUM ............. intercommunication drumICE..................... ICE ..................... internal combustion engineICF ..................... ICF ..................... inspection check fixtureICFCD................. ICFCD................. interior communication and fire control distributionICM .................... icm ..................... intercommunication [short form]ICMPS ................ ICMPS................. induction compassICR..................... ICR..................... iron-core reactorICRM.................. icrm .................... ice creamICS ..................... ICS .....................Intercommunication SystemICS ..................... ICS ..................... interphone control stationICT..................... ICT ..................... inspection check templateICT..................... ICT .....................International Critical TablesICTCD ................ ictcd .................... insecticideICU..................... ICU..................... intensive-care unitICW.................... ICW .................... interrupted continuous waveID....................... ID....................... indicator driverID....................... ID....................... induced draft



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ID ...................... ID....................... inside diameterID ...................... ID....................... internal diameterID ...................... ID....................... indentured data listIDCTR ................ idctr .................... inductorIDDD.................. IDDD.................. international direct distance dialingIDENT ................ ident.................... identificationIDENT ................ ident.................... identifyIDF..................... IDF..................... intermediate distributing frameIDFO .................. IDFO .................. identified foeIDL .................... idl....................... idlerIDLT .................. idlt...................... identification lightIDNO.................. idno .................... identification numberIDP..................... IPD..................... integrated data processingIDRTY................ idrty .................... indirectlyIDSM.................. IDSM.................. inertial demand servomotorIDTY .................. IDTY .................. intermittent dutyIDX .................... idx...................... indexIE....................... ie........................ that isIF ....................... IF ....................... inside frostedIF ....................... IF ....................... instruction folderIF ....................... IF ....................... intermediate frequencyIFE ..................... IFE ..................... inner front endIFF ..................... IFF ..................... identification friend or foeIFFS ................... IFFS.................... identification friend or foe switchingIFL ..................... ifl ....................... inflatableIFLDFL............... IFLDFL ............... inflating-deflatingIFR..................... IFR ..................... instrument flight rulesIG ...................... IG....................... Inertial guidanceIGEN .................. igen .................... current sourceIGFET................. IGFET................. insulated-gate field-effect transistorIGFET................. IGFET................. isolated-gate field-effect transistorIGMT.................. igmt .................... impingementIGN .................... ign...................... ignitionIGN .................... ign...................... ignitronIGNTR................ igntr .................... ignitorIGS..................... IGS..................... inertial guidance systemIGT .................... igt....................... ingotIGV .................... IGV .................... inlet guide vaneIHFF................... IHFF ................... inhibit halt flip-flopIHPH .................. IHPH .................. indicated horsepower-hourII........................ ii ........................ item identificationIIL...................... IIL...................... integrated injection logicIK ...................... IK....................... inner keelIL....................... IL ....................... inclined ladderIL....................... IL ....................... index listIL....................... IL ....................... inside layerIL....................... IL ....................... instruction leafletILA .................... ILA..................... instrument landing approachILAS................... ILAS................... Instrument Landing Approach SystemILLUM................ illum ................... illuminateILLUS................. illus .................... illustrateILPFL ................. ILPFL ................. ideal lowpass filterILS ..................... ILS ..................... Instrument Landing system



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IM ...................... IM ...................... inside of metalIM ...................... IM ...................... installation and maintenanceIM ...................... IM ...................... interceptor missileIM ...................... IM ...................... intermediate missileIMAG ................. imag.................... imaginaryIMD.................... IMD .................... intermodulation distortionIMEP .................. IMEP................... indicated mean effective pressureIMH.................... IMH .................... inlet manholeIMIT ................... imit ..................... imitationIML .................... IML .................... inside mold lineIMMED ............... immed ................. immediateIMP .................... imp ..................... impactIMPD .................. impd.................... impedanceIMPF................... impf .................... imperfectIMPL .................. impl .................... implementIMPLR ................ implr ................... impellerIMPLS................. impls ................... impulseIMPPS................. IMPPS ................. improved plow steelIMPR .................. impr .................... impedorIMPRG................ imprg................... impregnateIMPRL ................ imprl ................... imperialIMPROV.............. improv ................. improvementIMPRSN .............. imprsn ................. impressionIMPS................... imps .................... imposeIMRS .................. imrs..................... immersionIMU.................... IMU .................... inertial measurement unitIN....................... in........................ inchINBD .................. inbd..................... inboardINC..................... INC..................... incorporatedINCAND.............. incand.................. incandescentINCBR ................ incbr.................... incubatorINCIN ................. incin.................... incineratorINCL................... incl ..................... includeINCL................... incl ..................... inclusiveINCLN ................ incln.................... inclinedINCLR ................ inclr .................... intercoolerINCLS................. incls .................... inclosureINCM.................. incm.................... incomingINCND................ incnd ................... incendiaryINCOH................ incoh ................... incoherentINCOMP.............. incomp................. incompleteINCOR ................ incor.................... incorrectINCR .................. incr ..................... increaseINCR .................. incr ..................... incrementINCR .................. INCR................... interrupt control registerIND .................... ind ...................... indicateIND .................... ind ...................... inductanceIND .................... ind ...................... inductionIND .................... ind ...................... industryINDEP................. indep ................... independentINDET ................ indet.................... indeterminateINDL .................. indlp.................... industrialINDLP................. indlp.................... indicating lamp



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INDREG.............. indreg.................. inductance regulatorINDT .................. indt ..................... indentINDTR................ INDTR ................ indicator-transmitterINDV.................. indv .................... individuallyINF..................... inf ...................... infiniteINF..................... inf ...................... infinityINFO .................. info..................... informationINFRN ................ infrn.................... inferenceINHB.................. inhb .................... inhibitINIT ................... init...................... initialINIT ................... init...................... initiationINJ ..................... inj....................... injectINL .................... inl....................... inletINLB .................. inlb ..................... inch-poundINOP .................. inop .................... inoperativeINORG................ inorg ................... inorganicINP..................... inp...................... inputINQ .................... inq...................... inquiryINR .................... inr ...................... innerINRT .................. inrt...................... inertINRTFLR ............ INRTFLR............. inert fillerINRTG................ INRTG ................ inert gasINRTL ................ inrtl..................... inertialINS..................... ins ...................... insideINS..................... ins ...................... insureINSC .................. insc..................... inscriptionINSCHAR............ inschar................. insert characterINSEP................. insep ................... inseparableINSOL ................ insol.................... insolubleINSP................... insp..................... inspectINSR .................. insr ..................... insertINST................... INST................... insert screw threadINST................... inst ..................... instantaneousINST................... inst ..................... instituteINSTAR .............. INSTAR .............. inertialess scanning, tracking and rangingINSTL................. instl .................... installINSTL................. instl .................... installationINSTLR............... instlr ................... installerINSTM................ instm................... instrumentationINSTPN............... INSTPN............... instrument panelINSTR ................ instr .................... instructINSTR ................ instr .................... instrumentINSTRLY ............ instrly.................. instantaneous relayINSUF ................ insuf.................... insufficientINSUL ................ insul.................... insulateINT .................... int....................... integralINT .................... int....................... interrupter [relay]INTCHG.............. intchg .................. interchangeableINTCHGR ........... intchgr ................. interchangerINTCON.............. intcon .................. interconnectionINTCON.............. intcon .................. internal connectionINTCP ................ intcp.................... interceptINTCYL .............. intcyl................... intercylinder



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INTEG ................ integ.................... integratingINTEL................. intel..................... intelligenceINTEN ................ inten.................... intensityINTERCOM ......... intercom............... intercommunicationINTERGOVT........ INTERGOVT........ intergovernmentalINTFC................. intfc .................... interfaceINTK .................. intk ..................... intakeINTL................... intl ...................... internalINTL................... intl ...................... internationalINTLK ................ intlk .................... interlockINTMD................ intmd................... intermediateINTMT................ intmt ................... intermittentINTPH................. intph.................... interphoneINTPHTR ............ INTPHTR............. interphase transformerINTPO................. intpo.................... interpoleINTPR................. intpr .................... interpretINTR................... intr...................... interiorINTRC ................ intrc .................... intricateINTRF................. INTRF ................. interferenceINTRG ................ intrg .................... interrogateINTRO ................ intro .................... introductionINTRPL............... intrpl ................... interpolationINTRPLRY .......... intrplry................. interpupillaryINTRPT............... intrpt ................... interruptINTSCT............... intsct ................... intersectINTSHP............... intshp .................. intershipINTSTG............... intstg ................... interstageINTVL ................ intvl .................... intervalINTVLM.............. intvlm.................. intervalometerINV .................... inv ...................... inverterINVAR................ invar.................... invariantINVLT ................ invlt .................... involuteINVN .................. invn..................... inventoryINVS................... invs ..................... inverseINVT .................. invt ..................... invertINWD ................. inwd.................... inwardINXLTR .............. INXLTR .............. input translatorIO....................... IO....................... inlet and outletIO....................... IO....................... input-outputIOB..................... IOB..................... input-output bufferIOE..................... IOE..................... input-output elementIOH .................... IOH..................... inlet and outlet headIOL..................... IOL..................... instantaneous overloadIOM.................... IOM .................... interoffice memorandumIONO .................. iono..................... ionsphereIOR..................... IOR..................... input-output registerIP ....................... IP ....................... identification of positionIP ....................... IP ....................... instruction plateIP ....................... IP ....................... instruction pulseIP ....................... IP ....................... interchangeable solid and screen panelsIP ....................... IP ....................... intermediate pressureIP ....................... ip........................ interpostIP ....................... IP ....................... iron pipe



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August, 2003

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IPA..................... IPA..................... intermediate power amplifierIPADAE .............. IPADAE .............. integrated passive-action detection and acquisition equipmentIPB..................... IPB ..................... illustrated parts breakdownIPC..................... IPC ..................... illustrated parts catalogIPL ..................... IPL ..................... indentured parts listIPS ..................... IPS ..................... inch per secondIPS ..................... IPS ..................... International Pipe StandardIPS ..................... IPS ..................... iron pipe sizeIPT ..................... IPT ..................... internal pipe threadIPT ..................... IPT ..................... iron pipe threadIR....................... IR....................... infraredIR....................... IR....................... inside radiusIR....................... IR....................... insulation resistanceIR....................... IR....................... interrogator-responderIRACQR.............. IRACQR.............. infrared acquisition radarIRASER .............. IRASER............... infrared maserIRBM.................. IRBM.................. intermediate-range ballistic missileIRC .................... IRC..................... information retrieval centerIRCM.................. IRCM.................. infrared countermeasuresIRMRA ............... IRMRA ............... infrared monochromatic radiationIRREG ................ irreg .................... irregularIRS..................... IRS ..................... item reduction studiesIS ....................... IS ....................... incomplete sequence [relay]IS ....................... IS ....................... industrial serviceIS ....................... IS ....................... insect screenIS ....................... IS ....................... inventory scheduleIS ....................... is ........................ islandISAP................... ISAP ................... information sort and predictISGN .................. isgn..................... insigniaISLN................... isln ..................... isolationISLNWD ............. islnwd ................. isolation wardISO..................... iso ...................... isometricISOL................... isol ..................... isolateISOS................... isos ..................... isoscelesISPEC ................. ISPEC ................. insulation specificationISS ..................... iss....................... issueIST ..................... IST ..................... International Standard Thread [metric]ISTAR ................ ISTAR................. image, storage translation and reproductionISYN .................. isyn..................... inductosynIT....................... IT ....................... instruction tagIT....................... IT ....................... insulating transformerIT....................... IT ....................... interrogator-transponderITAE .................. ITAE................... integrated time and absolute errorITL..................... ITL ..................... inverse time limitITR..................... ITR..................... inverse time relayITS ..................... ITS ..................... insulation test specificationITT..................... ITT ..................... inside trim templateIV ...................... IV....................... initial velocityIV ...................... IV....................... intermediate voltageIW...................... iw....................... indirect waste

JJ ........................ j ......................... joiner



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August, 2003

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JAMG ................. jamg.................... jammingJAN .................... Jan ......................JanuaryJAN .................... JAN ....................Joint Army-NavyJANAF ................ JANAF ................Joint Army-Navy-Air ForceJAP..................... jap ...................... japannedJATO .................. JATO .................. jet-assisted takeoffJB....................... JB....................... junction boxJC....................... JC....................... janitor's closetJC....................... JC....................... joint compoundJCT..................... jct ....................... junctionJFET ................... JFET ................... junction field-effect transistorJKSCR ................ jkscr .................... jackscrewJKT..................... jkt ....................... jacketJND .................... JND .................... just noticeable differenceJNL..................... jnl ....................... journalJNND.................. JNND .................. just not noticeable differenceJO ...................... JO....................... job orderJOG .................... jog ...................... joggleJP ....................... JP ....................... jet propelledJP ....................... JP ....................... joists and planksJPFT ................... JPFT ................... joiner pilaster fume tightJPNT................... JPNT................... joiner pilaster nontightJR....................... jr ........................ juniorJT....................... JT ....................... jig templateJT....................... jt ........................ jointJTB..................... JTB..................... joint barJTSN................... jtsn...................... jettisonJUL..................... Jul ......................JulyJUN .................... Jun......................JuneJW...................... JW ...................... jacket water

KK........................ K ........................cathode [electron device]K........................ K ........................KelvinK........................ k......................... tanker [aircraft]KAL ................... kal ......................KalameinKALD ................. KALD .................Kalamein doorKB...................... KB......................knee braceKCP.................... KCPC..................keene's cement plasterKCPC.................. KCPC..................keene's cement plaster ceilingKD ..................... kd .......................kiln-driedKD ..................... KD......................knock downKDF.................... KDF....................Kalamein door and frameKE...................... KE ......................kinetic energyKINE .................. kine.....................kinescopeKL...................... kl........................key lockerKNBL ................. KNBL..................knife-bladeKNED ................. KNED .................knife-edgeKNSW................. KNSW.................knife switchKO ..................... ko .......................kickoff [relay]KO ..................... ko .......................knockoutKP ...................... kp .......................keypunchKP...................... kp .......................kickpipe



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August, 2003

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KPD ................... KPD.................... kick plate & dripKPG ................... kpg ..................... keepingKPL.................... KPL.................... kick plateKPLS.................. KPLS .................. key pulsingKRAL ................. kral ..................... KorosealKRSN ................. krsn .................... keroseneKST.................... kst ...................... keyseatKVAH ................ KVAH................. kilovolt-ampere hourKVAHM.............. KVAHM.............. kilovolt-ampere hour meterKVAM................ KVAM ................ kilovolt-ampere meterKWHM ............... KWHM ............... kilowatt-hour meterKWY .................. kwy .................... keywayKYBD................. kybd.................... keyboard

LL........................ l ......................... cellulose acetate [insul]L........................ L ........................ inductance (comb symbol)L........................ l ......................... lewisiteL........................ l ......................... liaison [aircraft]L........................ l ......................... line (comb form)LA ..................... LA...................... lead angleLA ..................... LA...................... lightning arresterLAB ................... lab ...................... laboratoryLAB ................... LAB.................... low-altitude bombingLAD ................... lad ...................... ladderLADAR............... LADAR............... laser detection and rangingLAE.................... LAE.................... left arithmetic elementLAG ................... lag ...................... laggingLAM................... lam ..................... laminateLAMA ................ LAMA................. local automatic message accountingLAN ................... lan ...................... local area networkLANH................. lanh .................... launchLANNET............. LANNET ............. large artificial neuron networkLAPT.................. LAPT.................. local apparent timeLAQ ................... laq ...................... lacquerLAS.................... LAS.................... low-alloy steelLASCR ............... LASCR................ light-activated semiconductor controlled rectifierLASER................ laser .................... light amplification by stimulated emission of radiationLASSM ............... LASSM ............... line amplifier and super sync mixerLAT.................... lat....................... latitudeLATL.................. latl ...................... lateralLAU ................... lau ...................... laundryLAV ................... lav ...................... lavatoryLB...................... LB...................... letter boxLB...................... lb ....................... lifeboatLB...................... LB...................... linoleum baseLB...................... lb ....................... poundLBFT.................. LBFT .................. pound-force footLBIN .................. LBIN .................. pound-force inchLBK ................... lbk...................... left bankLBL.................... lbl....................... labelLBP.................... LBP .................... length between perpendicularsLBR ................... lbr ...................... lumber



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August, 2003

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LBRT.................. lbrt...................... libertyLBRY ................. lbry ..................... libraryLBYR ................. lbyr ..................... labyrinthLBYRPK ............. LBYRPK.............. labyrinth packLC...................... LC ...................... inductance-capacitanceLC...................... LC ...................... laundry chuteLC...................... LC ...................... lead-coveredLC...................... LC ...................... length of chordLC...................... LC ...................... light caseLC...................... LC ...................... line-carryingLC...................... LC ...................... load carrierLC...................... LC ...................... load centerLC...................... LC ...................... load-compensating [relay]LC...................... LC ...................... low carbonLC...................... lc ........................ lowercaseLC...................... LC ...................... lox cleanLCB.................... LCB .................... longitudinal position of center of buoyancyLCC.................... LCC .................... launch and control centerLCD.................... LCD.................... liquid-crystal displayLCF .................... LCF .................... longitudinal position of center of flotationLCG.................... LCG.................... longitudinal position of center of gravityLCH.................... lch ...................... latchLCHR ................. lchr ..................... launcherLCL .................... lcl ....................... local apparent timeLCL .................... LCL .................... lower control limitLCM ................... LCM ................... lead-coated metalLCM ................... LCM ................... least common multipleLCOLNT ............. LCOLNT.............. low coolantLCR.................... LCR .................... inductance-capacitance resistanceLCRV ................. LCRV.................. length of curveLCS .................... LCS .................... life-cycle survivabilityLCSW ................. LCSW ................. latch checking switchLCT .................... lct ....................... locateLCT .................... lct ....................... locustLD...................... ld........................ leadingLD...................... LD ...................... line drawingLDB.................... LDB.................... light distribution boxLDC.................... LDC.................... linear detonating cardLDC.................... LDC.................... line-drop compensatorLDET.................. LDET .................. level detectorLDG ................... ldg ...................... landingLDG ................... ldg ...................... loadingLDGGR ............... ldggr ................... landing gearLDISCR............... LDISCR............... level discriminatorLDK ................... LDK.................... lower deckLDMK................. ldmk.................... landmarkLDR.................... ldr....................... leaderLDR.................... LDR.................... loaderLE ...................... LE ...................... leading edgeLE ...................... LE ...................... lifting eyeLE ...................... LE ...................... low explosiveLED.................... LED .................... light-emitting diodeLEJ..................... LEJ ..................... longitudinal expansion joint



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August, 2003

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LEM ................... LEM ................... lunar excursion moduleLER.................... LER.................... leading edge radiusLEVMETR........... levmetr ................ levelometerLF ...................... LF ...................... lawn faucetLF ...................... LF ...................... life floatLF ...................... LF ...................... linoleum floorLF ...................... LF ...................... load factor [tabular]LF ...................... LF ...................... low frequencyLFO.................... LFO.................... low-frequency oscillatorLFOM................. LFOM ................. low-frequency outer markerLFRD.................. LFRD.................. lot fraction reliability definitionLFT .................... lft ....................... liftingLG ..................... lg ....................... lengthLGC ................... lgc ...................... logicLGD ................... LGD ................... length-to-diameter ratioLGE.................... lge ...................... largeLGG ................... LGG ................... light-gun pulse generatorLGNMVTE .......... LGNMVTE .......... lignum vitaeLGTH ................. LGTH ................. lightning holeLH ..................... LH...................... left handLH ..................... LH...................... litter hookLHDR ................. LHDR ................. left-hand driveLHS.................... LHS.................... left-hand sideLIC..................... lic....................... licenseLIC..................... LIC..................... linear integrated circuitLID .................... LID..................... locked in deviceLIFO................... LIFO................... last-in-first-outLIM.................... lim...................... limberLIM.................... lim...................... limitLIMSW ............... LIMSW ............... limit switchLIN .................... lin....................... linealLIN .................... lin....................... linearLINOL ................ linol .................... linoleumLIQ .................... liq....................... liquidLIQFL................. LIQFL................. liquid fuelLIRLY ................ LIRLY................. load-indicating relayLIT..................... lit ....................... litterLITHO ................ litho .................... lithographLIZ..................... liz....................... lizardLJ....................... LJ....................... life jacketLKD ................... lkd...................... lockedLKDC ................. LKDC ................. locked closedLKDO................. LKDO ................. locked openLKG ................... lkg...................... leakageLKG ................... lkg...................... lockingLKG ................... lkg...................... lookingLKGE ................. lkge .................... linkageLKNT ................. lknt ..................... locknutLKR ................... lkr ...................... lockerLKROT ............... LKROT ............... locked rotorLKSCR ............... lkscr.................... lockscrewLKT.................... lkt....................... lookoutLKUP ................. lkup .................... lockup



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August, 2003

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LKWASH ............ LKWASH............. lock washerLKWR................. lkwr .................... lockwireLL ...................... LL ...................... light lockLL ...................... LL ...................... live loadLL ...................... LL ...................... load listLL ...................... LL ...................... loft lineLL ...................... LL ...................... low levelLLL .................... LLL .................... low-level logicLLRES ................ LLRES ................ load-limiting resistorLLYP .................. LLYP .................. longleaf yellow pineLM ..................... LM ..................... left maleLM ..................... LM ..................... list of materialLMC ................... LMC ................... least material conditionLMPBLK ............. lmpblk ................. lampblackLMTG................. lmtg .................... limitingLMTR ................. lmtr ..................... limiterLN...................... ln........................ logarithm [natural]LN...................... LN ......................natural logarithmLNBD ................. lnbd..................... lens boardLNG ................... lng ...................... lengtheningLNG ................... lng ...................... liningLNSP .................. lnsp ..................... lens speedLNTL.................. lntl ...................... lintelLNYD ................. lnyd..................... lanyardLO...................... LO ...................... local oscillatorLO...................... LO ...................... lock-onLO...................... LO ...................... lubrication orderLOA ................... LOA.................... length overallLOAMP............... LOAMP ............... logarithmic amplifierLOBAR ............... LOBAR ............... long baseline radarLOC.................... loc ...................... localizerLOCCIT .............. loccit ................... in the place citedLOCO ................. loco..................... locomotiveLOFAR................ LOFAR................ low-frequency acquisition and rangingLOFF .................. loff...................... leakoffLOG ................... log ...................... logarithmLOL.................... LOL .................... length of lead [actual]LOM................... LOM ................... light-optic microscopeLONG ................. long..................... longitudeLONG ................. long..................... longitudinalLONGN............... LONGN ............... longeronLOP .................... LOP .................... lubricating oil pumpLOPAR................ LOPAR................ low-power acquisition radarLOR.................... LOR.................... lunar orbit-rendezvousLORAN ............... LORAN ............... long-range navigationLOS .................... LOS .................... line-of-sightLOS .................... LOS .................... loss of signalLOSS .................. LOSS ..................Landing Observer Signal SystemLOX ................... LOX.................... liquid oxygenLP ...................... LP ...................... low passLP ...................... LP ...................... low pointLP ...................... LP ...................... low pressureLPC .................... LPC .................... loop-control [relay]



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August, 2003

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LPFL .................. LPFL .................. lowpass filterLPFM ................. LPFM.................. low-powered fan markerLPG.................... lpg...................... lappingLPG.................... LPG.................... liquid petroleum gasLPHLDR ............. lphldr .................. lampholderLPL .................... LPL .................... lightproof louverLPLR.................. LPLR .................. lock pillarLPO.................... LPO.................... low power outputLPR.................... lpr ...................... looperLPS .................... LPS .................... lightproof shadeLPSVR................ LPSVR ................ life preserverLPTR.................. LPTR .................. line printerLPV.................... LPV.................... lightproof ventLPW ................... LPW ................... lumen per wattLQGLS ............... LQGLS................ liquid in glassLQMETR............. lqmetr.................. liquidometerLQR ................... lqr ...................... liquorLR...................... LR...................... ladder rungLR...................... LR...................... liquid rocketLR...................... LR...................... load ratioLR...................... LR...................... load-resistor [relay]LR...................... LR...................... locus of radiusLRA ................... LRA.................... line receiving amplifierLRA ................... LRA.................... locked-rotor amperesLRC ................... LRC.................... load-ratio controlLRE.................... LRE.................... liquid-rocket engineLRI..................... LRI..................... left-right indicatorLRI..................... LRI..................... long-range radar inputLRIRR ................ LRIRR ................ low-resolution infrared radiometerLRU ................... lru ...................... line replaceable unitLS ...................... LS ...................... launcher siteLS ...................... LS ...................... left sideLS ...................... ls ........................ limestoneLS ...................... ls ........................ loudspeakerLSA.................... LSA.................... limited-space-charge accumulation [microwaves diodes]LSB.................... LSB .................... lower sidebandLSD.................... LSD.................... long sideLSDT.................. LSDT.................. local sidereal timeLSHG ................. lshg..................... lashingLSHI................... LSHI................... large-scale hybrid integrationLSI ..................... LSI ..................... large-scale integrationLSMITH.............. lsmith .................. locksmithLSP .................... LSP .................... low speedLSR.................... LSR .................... load shifting resistorLSST .................. LSST .................. list of specifications and standardsLST .................... LST .................... local standard timeLSTM ................. LSTM ................. low steamLSVG ................. lsvg..................... lifesavingLSWLT ............... lswlt.................... landing signal wand lightLT...................... lt ........................ large tugLT...................... LT ...................... laundry trayLT...................... lt ........................ lightLT...................... LT ...................... light trap



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August, 2003

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LT ...................... LT ...................... low tensionLTA.................... LTA .................... lighter-than-airLTC .................... ltc ....................... latticeLTD.................... ltd ....................... limitedLTEMPT.............. LTEMPT.............. low temperatureLTG.................... ltg ....................... lighteningLTG.................... ltg ....................... lightingLTGH ................. LTGH.................. lightening holeLTHR.................. lthr...................... leatherLTID................... LTID................... light-intensity detectorLTPD .................. LTPD .................. lot tolerance percent defectiveLTPR .................. LTPR .................. long taperLTQ.................... LTQ .................... low torqueLTR .................... ltr ....................... letterLTRN.................. ltrn...................... lanternLTRPRS .............. ltrprs ................... letteringLTRPRS .............. ltrprs ................... letter pressLTSW ................. LTSW.................. light switchLTTK.................. LTTK .................. light tankLU...................... LU ...................... logic unitLUB.................... lub ...................... lubricateLUBO ................. lubo..................... lubricating oilLUBT.................. lubt ..................... lubricantLUD ................... LUD.................... lift-up doorLUF .................... LUF .................... lowest usable frequencyLUHF.................. LUHF.................. lowest usable high frequencyLUM................... lum ..................... luminousLUN ................... lun ...................... lunetteLUS .................... LUS .................... load, update, subsetLV...................... LV ...................... low voltageLVD ................... LVD.................... louvered doorLVL.................... lvl ....................... levelLVO ................... LVO.................... louver openingLVP .................... LVP .................... low-voltage protectionLVR.................... lvr....................... leverLVR.................... lvr....................... louverLVRE.................. LVRE.................. low-voltage release effectLVRLSE.............. LVRLSE .............. low-voltage releaseLVS .................... lvs ...................... leavesLWB................... LWB ................... long wheelbaseLWC................... LWC ................... lightweight concreteLWIC.................. LWIC .................. lightweight insulating concreteLWL ................... LWL ................... load waterlineLWL ................... LWL ................... low-water lineLWR................... lwr ...................... lowerLWST ................. lwst ..................... lowestLYR.................... lyr....................... layerLYT.................... lyt ....................... layout

MM ....................... m........................magnafluxM ....................... m........................manila [rope]M ....................... m........................metacenter



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August, 2003

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M....................... m ....................... meter (instr, comb form)M....................... m ....................... model [military nomenclature]MA..................... ma ...................... masterMA..................... MA..................... mercury arcMA..................... MA..................... metal anchorMAC .................. MAC................... mean aerodynamic chordMACH ................ MACH ................ Mach numberMACH ................ mach ................... machineMAG .................. mag .................... magazineMAG .................. mag .................... magnesiumMAG .................. mag .................... magnetMAG .................. mag .................... magneticMAGAMP ........... MAGAMP............ magnetic amplifierMAGMOD........... MAGMOD ........... magnetic modulatorMAGN................ magn................... magnetronMAGTD .............. magtd .................. magnitudeMAGTHOR.......... magthor ............... magnesium-thoriumMAH .................. mah .................... mahoganyMAINT ............... maint................... maintenanceMAJ ................... maj ..................... majorMAL................... mal ..................... malleableMALE................. MALE................. multiaperture logic elementMALF................. malf .................... malfunctionMAM.................. mam.................... milliammeterMANF ................ manf ................... manifoldMANOVLD ......... MANOVLD.......... manual overloadMANUV.............. manuv ................. maneuveringMAOS ................ MAOS................. metal-aluminum-oxidesilicon siliconMAPG ................ MAPG................. maximum available power gainMAPU ................ MAPU................. memory allocation and protection unitMAR .................. Mar..................... MarchMAR .................. Mar..................... marineMARG ................ marg ................... marginMARS................. MARS................. Military Affiliated Radio SystemMARS................. MARS................. multiaperture reluctance switchMAS................... mas..................... metal anchor slotsMASER............... MASER............... microwave amplification by stimulated emission of radiationMASK ................ mask ................... maskingMASU ................ MASU................. machined surfaceMAT................... mat ..................... matrixMATH ................ math.................... mathematicalMATH ................ math.................... mathematicsMATL................. matl .................... materialMATW................ MATW................ metal awning-type windowMAX .................. max .................... maximumMAXCAP ............ maxcap ................ maximum capacityMAXFLT............. MAXFLT............. maximum flightMB..................... mb...................... mailboxMB..................... MB ..................... main battery [guns]MB..................... MB ..................... model blockMB..................... mb...................... motorboatMBD .................. MBD................... motor belt driveMBL................... mbl ..................... mobile



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August, 2003

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MBR................... MBR ...................mechanical buffer registerMBR................... mbr .....................memberMBS ................... MBS ...................main bang suppressorMBT ................... MBT ...................main ballast tankMBT ................... MBT ...................main battle tankMC ..................... MC .....................main coolantMC ..................... MC .....................manhole coverMC ..................... MC .....................medicine cabinetMC ..................... MC .....................military characteristicsMC ..................... MC .....................momentary contactMC ..................... MC .....................motor chainMC ..................... mc ......................multichipMC ..................... MC .....................multiple contactMCAM................ mcam ..................microammeterMCB................... MCB ...................metal corner beadMCC................... MCC ...................maintenance of close contactMCD................... MCD...................metal-covered doorMCE ................... MCE ...................military characteristics equipmentMCH................... MCH...................mail chuteMCHCL............... MCHCL...............mechanically cooledMCHRF............... MCHRF ...............mechanically refrigeratedMCHRY .............. mchry ..................machineryMCHST ............... mchst...................machinistMCKT................. mckt....................microcurrentMCKT................. mckt....................microcircuitMCM .................. MCM ..................magnetic core memoryMCM .................. mcm....................military characteristics motor vehiclesMCMPTR ............ mcmptr ................microcomputerMCO................... MCO...................manual change orderMCP ................... MCP ...................metal casting patternMCR................... MCR ...................manual change requestMCR................... MCR ...................master change recordMCRL................. MCRL .................master cross-reference listMCSW ................ MCSW ................motor circuit switchMCSWGR............ mcswgr ................metalclad switchgearMCT ................... MCT ...................main control tankMCW .................. MCW ..................metal casement windowMCW .................. MCW ..................modulated continuous waveMD..................... MD .....................motor directMDC................... MDC...................motor direct-connectedMDF ................... MDF ...................main distributing frameMDGT................. mdgt....................midgetMDIF .................. MDIF ..................manual data input functionMDL................... mdl .....................middleMDL................... mdl .....................moduleMDM .................. MDM ..................maximum design meterMDM .................. mdm....................mediumMDM .................. MDM ..................metal-dielectric-metal [filter]MDN................... mdn.....................medianMDR................... MDR...................master data recordMDRL................. mdrl ....................mandrelMDS ................... MDS ...................minimum discernible signalMDSE ................. mdse ...................merchandise



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August, 2003

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ME..................... ME ..................... miter endMEAR ................ MEAR................. maintenance engineering analysis recordMEAS................. meas ................... measureMECH ................ mech ................... mechanicalMECH ................ mech ................... mechanismMECZ................. mecz ................... mechanizeMED................... med .................... medicalMED................... MED................... microelectronic deviceMEG................... meg .................... megabyteMEL ................... mel ..................... melamineMELEC............... melec .................. microelectronicsMELEM .............. melem ................. microelementMEM .................. mem.................... memoryMEMB................ memb .................. membraneMEMO................ memo .................. memorandumMEMPT .............. MEMPT............... memory pointMEP ................... MEP ................... mean effective pressureMER................... mer ..................... meridianMERCH .............. merch .................. merchantableMESS ................. mess.................... messengerMET ................... met ..................... metalMET ................... met ..................... metallurgicalMETB................. METB ................. metal baseMETC................. METC ................. metal curbMETD................. METD................. metal doorMETF ................. METF ................. metal flashingMETG................. METG................. metal grilleMETJ.................. METJ .................. metal jalousieMETM ................ METM ................ metal moldMETP ................. METP ................. metal partitionMETP ................. METP ................. metal portionMETR................. METR ................. metal roofMETRL............... metrl ................... meteorologicalMETS ................. METS ................. metal stripMETS ................. METS ................. mobile engine test standMEW.................. MEW .................. microwave early warningMEZZ ................. mezz ................... mezzanineMF ..................... MF ..................... main feedMF ..................... MF ..................... male and femaleMF ..................... MF ..................... mastic floorMF ..................... MF ..................... medium frequencyMF ..................... mf ...................... microfilmMF ..................... MF ..................... motor fieldMFC ................... mfc ..................... microfunctional circuitMFD................... mfd..................... manufacturedMFG................... mfg..................... manufacturingMFGINFO ........... MFGINFO............ manufacturing informationMFHBF............... MFHBF ............... mean flight hours between failureMFLRD............... MFLRD............... male flaredMFP ................... MFP.................... multifrequency pulsingMFR ................... mfr ..................... manufactureMFS ................... mfs ..................... magazine flooding and sprinklingMFS ................... MFS.................... marine-finish slate



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August, 2003

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MFSFU ............... MFSFU................matt-finish structural facing unitsMG..................... MG .....................machine gunMG..................... mg ......................magnetic armatureMG..................... MG .....................motor generatorMG..................... mg ......................multigageMGC................... MGC...................manual gain controlMGE................... MGE ...................maintenance ground equipmentMGF ................... mgf .....................magnifyMGL................... mgl .....................marginal [relay]MGL................... mgl .....................mogulMGMC................ MGMC ................multiple gun motor carriageMGN................... mgn.....................magnetoMGR................... mgr .....................managerMGS ................... MGS ...................metal gravel stopMGT................... mgt .....................managementMGTMTR............ mgtmtr.................magnetometerMH..................... mh ......................manholeMHB................... MHB...................mine hauling bogieMHD................... mhd.....................magnetohydrodynamicsMHD................... mhd.....................mastheadMHDLT............... mhdlt...................masthead lightMHF ................... MHF ...................medium high frequencyMHHW................ MHHW................mean higher high waterMHL................... MHL ...................mast hull loopMHPD................. MHPD .................masonite hydropress dieMHT................... MHT ...................mean high tideMHW.................. MHW ..................mean high waterMI ...................... MI ......................malleable ironMI ...................... MI ......................manufacturing instructionMI ...................... mi .......................mileMIA.................... MIA ....................metal-interface amplifierMIC .................... mic .....................micrometerMIC .................... mic .....................microphoneMIC .................... MIC ....................monolithic integrated circuitMICELEM ........... MICELEM ...........microphone elementMICR.................. MICR ..................magnetic ink character recognitionMICR.................. micr ....................microscopeMIL .................... mil ......................militaryMIL-STD ............. MIL-STD .............military standard [book]MIN.................... min .....................minimumMIN.................... min .....................minorMINTR................ mintr ...................miniatureMIP .................... MIP.....................missile impact predictorMIPRCS .............. miprcs..................microprocessorMIR .................... mir......................mirrorMISC .................. misc ....................miscellaneousMIT .................... mit ......................miterMJ ...................... MJ ......................mastic jointMKD................... mkd.....................markedMKGS................. mkgs ...................markingsMKR................... mkr .....................markerMKS ................... MKS ...................meter-kilogram-secondMKUP................. mkup ...................makeup



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August, 2003

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ML..................... ML ..................... material listML..................... ML ..................... mold lineML..................... ml....................... monolithicMLD................... MLD................... master layout duplicateMLD................... MLD................... middle landingMLD................... mld ..................... moldedMLDG ................ mldg ................... moldingMLG................... MLG................... main landing gearMLL ................... MLL ................... master lines layoutMLLW................ MLLW ................ mean lower low waterMLO................... MLO................... master layout originalMLP ................... MLP ................... metal lath and plasterMLS ................... MLS ................... metal slittingMLT ................... MLT ................... mean low tideMLTPL ............... mltpl ................... multiplaneMLTSP ............... mltsp................... multispeedMLW.................. MLW .................. mean low waterMMC.................. MMC .................. maximum material conditionMMC.................. MMC .................. mortar motor carrierMMD.................. MMD.................. master makeup and displayMMF .................. MMF .................. magnetomotive forceMMIN................. mmin .................. microminiatureMMOD ............... mmod.................. micromoduleMMS .................. MMS .................. magnetic mine sweepingMMT .................. MMT .................. metal mountMNCMPTR.......... mncmptr .............. minicomputerMNFRM.............. MNFRM .............. main frameMNG .................. mng .................... managingMNL................... mnl ..................... manualMNLOPR ............ MNLOPR............. manually operatedMNOS ................ MNOS................. metal-nitride-oxide siliconMNRL ................ mnrl .................... mineralMNSTBMV.......... MNSTBMV.......... monostable multivibratorMO..................... MO..................... mason operatedMO..................... MO..................... master oscillatorMO..................... mo...................... monthMO..................... MO..................... motor operatedMOA .................. MOA .................. matrix output amplifierMOBLT............... MOBLT............... man overboard and breakdown lightMOCAN.............. MOCAN .............. motor canMOD .................. mod .................... modelMOD .................. mod .................... modificationMOD .................. mod .................... modifyMOD .................. mod .................... modulatorMOD .................. mod .................... modulusMODEM ............. MODEM.............. modulator-demodulatorMOL................... mol ..................... moleculeMOLELEX .......... MOLELEX........... molecular electronicsMOLWT.............. MOLWT.............. molecular weightMOM.................. mom ................... momentaryMON .................. mon .................... monitorMON .................. mon .................... monumentMONO................ mono................... monophonic



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August, 2003

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MONOG.............. monog .................monographMOPA................. MOPA .................master oscillator power amplifierMOPR................. MOPR .................mop rackMORT................. MORT .................morse taperMOS ................... MOS ...................metal-oxide semiconductorMOS ................... mos .....................mosaicMOSFET ............. MOSFET..............metal-oxide-semiconductor field effects transistorMOST ................. MOST .................metal-oxide-semiconductor transistorMOT................... mot .....................motorMP ..................... MP......................medium pressureMP ..................... MP......................melting pointMP ..................... mp ......................multipoleMPC ................... MPC ...................motion picture control panelMPE ................... MPE....................maximum permissible exposureMPG ................... MPG ...................mile per gallonMPH ................... MPH ...................mile per hourMPI .................... MPI.....................magnetic particle inspectionMPIR .................. MPIR ..................missile precision instrumentation radarMPK ................... MPK ...................maintenance parts kitMPL ................... MPL....................maintenance parts listMPN ................... MPN ...................most probable numberMPP.................... MPP....................motion picture projectorMPPH ................. MPPH .................motion picture phonographic unitMPR ................... MPR ...................monopulse radarMPT ................... MPT....................male pipe threadMR ..................... MR .....................machine rifleMR ..................... MR .....................maintenance and repairMR ..................... mr.......................marbleMRB................... MRB ...................marble baseMRBM ................ MRBM ................medium-range ballistic missileMRCL................. mrcl ....................mercurialMRD................... MRD...................metal rolling doorMRF ................... MRF ...................marble floorMRG................... mrg .....................mooringMRT ................... MRT ...................marble thresholdMRT ................... MRT ...................mildew-resistant threadMS ..................... ms ......................magnetostrictionMS ..................... MS......................maintenance and supplyMS ..................... ms ......................manuscriptMS ..................... MS......................mark sensingMS ..................... MS......................military standard [sheet]MSB ................... MSB ...................most significant bitMSCR ................. MSCR .................machine screwMSE ................... MSE....................maintenance support equipmentMSG ................... msg .....................messageMSG ................... MSG ...................miscellaneous simulation generationMSGG................. MSGG .................message generatorMSHG................. mshg ...................meshingMSL ................... MSL....................mean sea levelMSL ................... msl......................missileMSLBT ............... mslbt ...................missile boat tailMSLT ................. mslt.....................minesweeping lightMSLY ................. msly ....................mostly



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August, 2003

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MSMP ................ MSMP................. master sensitized material printMSNRY .............. msnry .................. masonryMSP ................... MSP.................... metal splash panMSR ................... MSR ................... mineral-surface roofMST ................... MST ................... machine steelMSTC ................. mstc .................... masticMSTRE ............... mstre................... moistureMSW .................. MSW .................. master switchMSYNC .............. MSYNC............... master synchronizerMT..................... MT ..................... magnetic tapeMT..................... MT ..................... mail trayMT..................... MT ..................... maximum torqueMT..................... MT ..................... mean tideMT..................... MT ..................... mean timeMT..................... MT ..................... metal thresholdMT..................... MT ..................... motor transportMT..................... mt....................... mountMTB................... MTB ................... maintenance of true bearingMTBF ................. MTBF ................. mean time between failuresMTC................... MTC ................... memory test computerMTC................... MTC ................... mission and traffic controlMTCHD .............. mtchd .................. matchedMTD................... mtd ..................... mountedMTF ................... MTF ................... mechanical time fuzeMTG................... mtg ..................... mountingMTGC ................ MTGC................. mounting centerMTHBD .............. mthbd.................. motherboardMTHD ................ mthd ................... methodMTHRD .............. MTHRD .............. male threadedMTI.................... MTI .................... moving-target indicatorMTLC................. mtlc .................... metallicMTLZ ................. mtlz .................... metallizeMTN................... mtn ..................... motionMTOS................. MTOS ................. metal-thick-oxide siliconMTR................... mtr...................... meter [instrument]MTR................... mtr...................... meteringMTRCL............... mtrcl ................... motorcycleMTRDN .............. MTRDN .............. motor-drivenMTRS ................. mtrs .................... mattressMTS ................... MTS ................... material test specificationMTSQ................. MTSQ ................. mechanical time, superquickMTTF ................. MTTF ................. mean time to failureMTTFF ............... MTTFF................ mean time to first failureMTTR................. MTTR ................. mean time to repairMTWF ................ MTWF ................ metal thru-wall flashingMTZ ................... mtz ..................... motorizedMU..................... MU..................... multiple unitMUF................... MUF ................... maximum usable frequencyMUF................... muf..................... mufflerMUFD ................ MUFD................. makeup feedMULR ................ mulr .................... mullerMULT................. mult .................... multipleMULT................. mult .................... multiplication



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August, 2003

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MULTH............... multh...................multilithMULTR............... multr ...................multimeterMULTR............... multr ...................multiplierMUN................... mun.....................munitionsMUSB................. MUSB .................mobile unit support baseMUT................... MUT ...................mean up timeMUT................... MUT ...................mockup templateMUT................... mut .....................mutilatedMUW.................. muw....................music wireMUX................... mux.....................multiplexMV..................... MV .....................mean variationMV..................... mv ......................multivibratorMV..................... MV .....................muzzle velocityMVB................... MVB...................motor v-beltMVBL................. mvbl....................movableMVC................... MVC...................manual volume controlMVG................... mvg.....................movingMVP ................... MVP ...................methyl-violet paperMVT................... mvt .....................movementMWB .................. MWB ..................motor whaleboatMWG.................. MWG ..................Music Wire GageMWO.................. MWO ..................modification work orderMWP .................. MWP...................maximum working pressureMWP .................. MWP...................membrane waterproofingMWR .................. MWR ..................mean width ratioMWV.................. MWV ..................maximum working voltageMXDCR .............. MXDCR ..............mode transducerMXFL ................. MXFL .................mixed flowMXG................... mxg.....................mixingMXT................... mxt .....................mixtureMZL ................... mzl .....................muzzle

NN........................ N ........................electron (n)-type semiconductor materialN........................ N ........................National form [thread]N........................ N ........................northN........................ N ........................novelty [insul]NA ..................... na .......................next assemblyNA ..................... NA......................not applicableNA ..................... NA......................not availableNAC ................... nac......................nacelleNAIOP ................ NAIOP ................navigational aid inoperative for partsNAR ................... nar ......................narrowNAT ................... nat ......................naturalNATL ................. natl .....................nationalNAUT ................. naut.....................nauticalNAV ................... nav......................navalNAV ................... nav......................navigateNAVAID ............. NAVAID..............navigational aidNAVBRZ............. NAVBRZ .............naval bronzeNAVCMD............ NAVCMD ............navigation countermeasures and deceptionNB...................... NB......................narrow bandNB...................... NB......................no bias [relay]



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August, 2003

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NBS ................... NBS.................... natural black slateNC ..................... NC ..................... National coarse [thread]NC ..................... NC ..................... no changeNC ..................... NC ..................... no coilNC ..................... NC ..................... no connectionNC ..................... NC ..................... normally closedNC ..................... NC ..................... numerical controlNCA ................... NCA ................... nickel copper alloyNCH ................... NCH ................... notchedNCM .................. NCM................... noncorrosive metalNCOMBL ............ ncombl ................ noncombustibleNCP ................... NCP.................... normal circular pitchNCPLD ............... ncpld................... noncoupledNCU ................... NCU ................... nozzle control unitND ..................... ND ..................... no drawingNDE ................... NDE ................... nondestructive evaluationNDI .................... NDI .................... nondestructive inspectionNDL ................... ndl ...................... needleNDP ................... NDP.................... normal diametral pitchNDRO................. NDRO................. nondestructive readoutNDT ................... NDT ................... nondestructive testingNEC ................... NEC.................... National Electrical CodeNEC ................... nec...................... necessaryNECS.................. NECS.................. National Electrical Code StandardsNEF.................... NEF.................... National extra fine [thread]NEG ................... neg ..................... negativeNEGPR ............... NEGPR ............... negative printNEIL .................. NEIL................... neon indicating lightNELEC ............... nelec ................... nonelectricNENCL ............... nencl ................... nonenclosureNESC.................. NESC.................. National Electrical Safety CodeNET.................... NET.................... noise equivalent temperatureNEUT ................. neut .................... neutralNEUT ................. neut .................... neutralizingNEWS................. NEWS................. naval electronic warfare simulatorNF...................... NF...................... National fine [thread]NF...................... NF...................... National FormularyNF...................... NF...................... near faceNF...................... NF...................... noise factorNF...................... NF...................... noise figureNF...................... NF...................... noise frequencyNF...................... NF...................... nose fuseNFL.................... NFL.................... navy standard flangeNFLMB............... nflmb .................. nonflammableNFSD.................. nfsd .................... nonfusedNFT.................... NFT.................... normal fuel oil tankNG ..................... NG ..................... narrow gageNG ..................... NG ..................... no goodNGEN................. NGEN ................. noise generatorNGO................... NGO ................... National gas outlet [thread]NH ..................... nh....................... nonhygroscopicNHA................... NHA ................... next higher assemblyNIC .................... NIC .................... not in contract



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August, 2003

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NICOP ................ NICOP.................nickel copperNIP..................... nip ......................nippleNISIL.................. nisil.....................nickel-silverNITROS .............. nitros ...................nitrostarchNITSTL ............... NITSTL ...............nitride steelNKL ................... nkl ......................nickelNL...................... nl........................noleadNLCHG ............... NLCHG ...............normal chargeNLD ................... nld ......................no loadNLG ................... NLG....................nose landing gearNLLT.................. NLLT ..................net-laying lightNLNR ................. nlnr .....................nonlinearNLT.................... NLT ....................normal lube oil tankNM..................... NM .....................noise meterNM..................... nm ......................nonmetallicNM..................... NM .....................nuclear magnetronNMAG ................ nmag ...................nonmagneticNMI.................... NMI ....................nautical mileNO ..................... NO......................normally openNO ..................... no .......................numberNOCCC ............... NOCCC ...............no control circuit contactsNOL ................... NOL....................normal overloadNOM................... nom.....................nominalNOMAD.............. NOMAD ..............naval oceanographic meteorological automatic deviceNOMEN .............. nomen..................nomenclatureNONSTD ............. nonstd..................nonstandardNONSYN............. nonsyn .................nonsynchronousNOR ................... NOR ...................notice of revisionNORM ................ norm ...................normalNORM ................ norm ...................normalizeNOSC ................. nosc ....................nonoscillatingNOV ................... Nov.....................NovemberNOZ ................... noz......................nozzleNP ...................... NP ......................National pipe threadNP...................... NP ......................nickel-platedNP...................... np .......................nonprocurableNP ...................... np .......................nonpropelledNPA.................... NPA....................normal pressure angleNPET .................. npet.....................nonpetroleumNPIN................... NPIN...................negative-positive-innegative negativeNPL .................... npl ......................nameplateNPN.................... NPN....................negative-positive-negative [transistor]NPNP.................. NPNP ..................negative-positive-nepositive positiveNPRN ................. nprn ....................neopreneNPS .................... NPS ....................Navy Primary StandardsNPSC .................. NPSC ..................straight thread [pipe couplings]NPSF .................. NPSF................... thread for press-tight jointsNPSL .................. NPSL .................. locknut pipe threadNPSM ................. npsm ................... jointsNPT .................... NPT ....................National taper pipe [thread]NPT .................... NPT .................... taper pipe threadNPTF .................. NPTF .................. tight jointsNPTR.................. NPTR .................. taper pipe thread [railing fixtures]



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August, 2003

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NR ..................... nr ....................... nonreactive [relay]NR ..................... NR ..................... nuclear reactorNRCP ................. NRCP.................. nonreinforced-concrete pipeNRD ................... NRD ................... nonreplenishable demandNRETN ............... nretn ................... nonreturnNRL ................... NRL.................... night ration lockerNRVSBL ............. nrvsbl .................. nonreversibleNRZ ................... NRZ.................... non-return-to-zeroNS...................... NS...................... National special [thread]NS...................... NS...................... near sideNS...................... NS...................... nickel steelNSLF.................. nslf ..................... nonselfNSN ................... nsn ..................... national stock numberNSS.................... NSS .................... Navy Secondary StandardsNST.................... NST.................... nonslip treadNT ..................... NT...................... navy typeNT ..................... nt ....................... nontightNTC ................... NTC.................... negative temperature coefficientNTM................... NTM................... night messageNTN ................... ntn ...................... neutronNTP.................... NTP.................... normal temperature and pressureNTPL.................. ntpl ..................... nut plateNTS.................... NTS.................... negative torque signalNTS.................... NTS.................... not to scaleNTWK ................ ntwk.................... networkNTWT ................ ntwt .................... net weightNUC ................... nuc ..................... nuclearNUM .................. num .................... numeralNUM .................. num .................... numericalNVG................... NVG ................... night vision gogglesNVIS .................. NVIS .................. night vision imaging systemNVR ................... NVR ................... no voltage releaseNWG .................. NWG .................. National Wire GageNWT .................. nwt ..................... nonwatertightNYL ................... nyl ...................... nylon

OO ....................... o ........................ orangeOA ..................... oa ....................... overallOAIDE................ OAIDE ................ operational assistance and instructive data equipmentOAO................... OAO ................... orbiting astronomical observatoryOB ..................... ob....................... obscureOBA ................... oba ..................... oxygen breathing apparatusOBE ................... OBE.................... outerback endOBJ .................... obj ...................... objectOBJV.................. objv .................... objectiveOBL ................... obl ...................... obliqueOBNR................. obnr .................... oil burnerOBS ................... obs ..................... observeOBS ................... obs ..................... obsoleteOBSTN ............... obstn ................... obstructionOBSV ................. obsv .................... observationOBV ................... obv ..................... obverse



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August, 2003

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OBW................... OBW...................observation windowOC...................... OC......................on centerOC...................... OC......................outside circumferenceOC...................... oc .......................overcurrentOCB ................... OCB....................oil circuit breakerOCB ................... OCB....................override control bitsOCC ................... occ......................occupyOCHR ................. OCHR .................oil catcherOCI..................... OCI.....................observable critical itemOCLD ................. OCLD..................oil-cooledOCLNR ............... oclnr....................oil cleanerOCLR ................. OCLR..................oil coolerOCO ................... OCO ...................open-close-openOCONT ............... OCONT ...............oil controlOCP.................... OCP ....................observable critical processesOCR ................... OCR....................oil circuit recloserOCR ................... OCR....................optical character recognitionOCR ................... OCR....................overcurrent relayOCT.................... oct ......................octagonOCT.................... oct ......................octaneOCT.................... Oct......................OctoberOCT.................... oct ......................octupleOCTAHDR........... octahdr.................octahedralOD ..................... OD......................olive drabOD ..................... OD......................outside diameterODA ................... ODA ...................other design activityODIFF................. ODIFF .................oil differentialODM................... ODM...................orbital determination moduleODN ................... ODN ...................own doppler nullifierODOM ................ odom...................odometerODP.................... ODP....................open dripproofODPP.................. ODPP ..................open dripproof protectedODPSK................ ODPSK................oil dipstickODT ................... ODT....................outside diameter tubeODU ................... ODU ...................output display unitOE...................... OE ......................open endOEM................... OEM ...................original equipment manufacturerOF ...................... OF ......................outside faceOFC.................... ofc ......................officeOFCL.................. ofcl .....................officialOFCR.................. ofcr .....................officerOFFEN................ offen ...................offensive [ammunition]OFL .................... ofl.......................oil filterOFR.................... OFR ....................overfrequency relayOFS .................... ofs ......................offsetOGL ................... OGL....................obscure glassOGO ................... OGO ...................orbiting geophysical observatoryOGR ................... OGR ...................outgoing repeaterOGT ................... OGT....................outgoing trunkOH ..................... OH......................open hearthOHA ................... OHA ...................outside helix angleOHM................... ohm.....................ohmmeterOI....................... OI .......................oil-insulated



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August, 2003

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OI ...................... OI....................... oil-immersedOIFC .................. OIFC................... oil-insulated fan-cooledOIL .................... OIL..................... orange indicating lightOISC .................. OISC................... oil-insulated self-cooledOIWC ................. OIWC ................. oil-immersed water-cooledOJ ...................... OJ ...................... open-joistedOLVL ................. OLVL ................. oil levelOM..................... OM..................... outside of metalOML................... OML................... outside mold lineONOZ................. ONOZ ................. oil nozzleOO ..................... oo....................... out to outOP...................... OP...................... oil pumpOP...................... op....................... oilproofOP...................... OP...................... out-of-printOP...................... op....................... ozalid printOPA ................... opa ..................... opaqueOPDAR............... OPDAR ............... optical detection and rangingOPIL................... OPIL................... opalescent indicating lightOPLG ................. OPLG.................. oil plugOPN ................... OPN.................... oil panOPN ................... opn ..................... operationOPNG ................. opng.................... openingOPNL ................. opnl .................... operationalOPP.................... OPP .................... octal print punchOPP.................... opp ..................... oppositeOPPCE................ oppce .................. opposite commutator endOPPPE ................ opppe .................. opposite pulley endOPPR.................. OPPR.................. offset printing pressOPR ................... opr...................... openerOPR ................... opr...................... operateOPRS.................. OPRS.................. oil pressureOPRT.................. oprt..................... operator tableOPSD.................. opsd .................... opensideOPT.................... opt ...................... opticalOPT.................... opt ...................... optimumOPTAX ............... optax................... optical axisOPTL.................. optl ..................... optionalOR ..................... OR ..................... oil ringOR ..................... OR ..................... output registerOR ..................... OR ..................... outside radiusOR ..................... or ....................... overhaul and repairORD ................... ord...................... orderORD ................... ord...................... ordinaryORD ................... ord...................... ordnanceORF ................... orf ...................... orificeORG ................... org...................... organicORG ................... org...................... organizationORIENT .............. orient .................. orientationORIG.................. orig..................... originORIG.................. orig..................... originalORLY ................. ORLY ................. overload relayORN ................... orn...................... orangeORN ................... orn...................... ornament



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August, 2003

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OS...................... OS ......................oil switchOS...................... OS ......................one-shotOS ...................... OS ......................operating systemOS...................... OS ......................otherwise specifiedOSC.................... osc ......................oscillateOSC.................... osc ......................oscillatorOSCG ................. oscg ....................oscillatingOSCG ................. OSCG..................oscillograph, stringOSCGRM ............ oscgrm.................oscillogramOSCRN ............... OSCRN................oil screenOSE .................... OSE ....................operational support equipmentOSL .................... osl ......................oil sealOSL .................... OSL ....................outstanding legOSMV................. osmv ...................one-shot multivibratorOSP .................... OSP ....................oil suction pumpOSP .................... OSP ....................operating steam pressureOSR.................... OSR ....................output shift registerOSTG (1STG) ....... ostg (1stg).............one-stageOSY (OS&Y)........ osy (os&y) ............outside screw & yokeOT...................... ot........................oiltightOT...................... ot........................overtoneOTCCC ............... OTCCC................open-type control circuit contactsOTK ................... OTK....................oil tankOTP .................... OTP ....................of true positionOTT.................... OTT ....................outside trim templateOUT ................... out ......................outgoingOUT ................... out ......................outletOUT ................... out ......................outputOUT ................... out ......................outsideOUTBD ............... OUTBD ...............outboardOUTXLTR ........... OUTXLTR ...........output translatorOV ..................... OV......................open ventilatedOVBD................. ovbd....................overboardOVE ................... OVE....................on-vehicle equipmentOVFL.................. ovfl .....................overflowOVH ................... OVH ...................oval headOVHD................. ovhd....................overheadOVHG................. ovhg....................overhangingOVHL ................. ovhl.....................overhaulOVLD ................. ovld.....................overloadOVP.................... OVP....................oval pointOVPRS................ ovprs ...................overpressurizedOVPWR .............. ovpwr ..................overpowerOVRD................. ovrd ....................overrideOVRM ................ ovrm ...................overarmOVS.................... ovs......................oversizeOVSP.................. ovsp ....................overspeedOVTR ................. ovtr .....................overtravelOVV ................... ovv .....................overvoltageOW..................... OW.....................outer wingOW (1/W) ............ ow (1/w)...............one-wayOW (1W) ............. ow (1w) ...............one-wireOWF................... OWF ...................optimum working frequency



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August, 2003

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OWGL ................ OWGL ................ obscure wire glassOWU .................. OWU .................. open-window unitOXD................... oxd ..................... oxideOXD................... oxd ..................... oxidizedOXY................... oxy ..................... oxygenOZ ..................... oz ....................... ounceOZIN .................. ozin .................... ounce-inch

PP ........................ P ........................ hole (p)-type semiconductor materialP ........................ p ........................ periodP ........................ p ........................ pilasterP ........................ p ........................ pitchP ........................ p ........................ plate [electron tube]P ........................ p ........................ probePA...................... PA...................... power amplifierPA...................... pa ....................... prearmPA...................... PA...................... pressure anglePA...................... pa ....................... price and availabilityPA...................... PA...................... public addressPA...................... PA...................... pulse amplifierPAADAR............. PAADAR............. passive airborne detection and rangingPABX ................. PABX ................. private automatic branch exchangePACM................. PACM................. passive countermeasuresPACR ................. PACR.................. perimeter acquisition radarPAD ................... PAD.................... padder [capacitor]PADAR............... padar................... passive detection and rangingPADLOC............. PADLOC ............. passive detection and location of countermeasuresPAM................... PAM ................... pulse-amplitude modulationPAN ................... pan ..................... panoramicPAN ................... pan ..................... pantryPANB ................. PANB ................. panic boltPANT ................. pant .................... pantographPAP.................... PAP .................... pierced aluminum plankPAR ................... PAR.................... precision-approach radarPARA ................. para .................... paragraphPARAMP............. PARAMP............. parametric amplifierPAREN ............... paren................... parenthesisPARK ................. park .................... parkerizedPARSYN ............. PARSYN ............. parametric synthesisPART.................. part ..................... partialPARV ................. parv .................... paravanePARVSTRCRA..... PARVSTRCRA..... paravane and stores cranePASS .................. pass .................... passagePASS .................. pass .................... passengerPAT.................... pat ...................... patentPATHOL ............. PATHOL ............. pathologicalPATPEND ........... PATPEND............ patent pendingPATT.................. patt ..................... patternPAX ................... PAX.................... private automatic exchangePB...................... PB ...................... pad and boom [refueling]PB...................... pb....................... painted basePB...................... PB ...................... pull box



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August, 2003

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PB ...................... PB ......................push buttonPBD.................... pbd .....................paperboardPBD.................... pbd .....................pressboardPBFD .................. PBFD ..................pierce, blank, and form diePBIT ................... PBIT ...................parity bitPBL .................... PBL ....................photo butt linePBSTA ................ pbsta ...................push-button stationPBSW ................. PBSW .................pull-button switchPBX.................... PBX ....................private branch exchangePC ...................... PC ......................parts catalogPC ...................... PC ......................personnel carrierPC ...................... pc .......................piecePC ...................... PC ......................pitch circlePC ...................... PC ......................plug cockPC ...................... PC ......................point of curvePC ...................... PC ......................printed circuitPC ...................... PC ......................pulsating currentPCB .................... PCB ....................power circuit breakerPCB .................... PCB ....................printed circuit boardPCC .................... PCC ....................point of compound curvePCF .................... PCF.....................pound per cubic footPCH.................... pch......................punchPCHG ................. pchg ....................punchingPCHT.................. pcht.....................parchmentPCI ..................... PCI .....................peripheral command indicatorPCI ..................... PCI .....................physical configuration identificationPCL .................... pcl ......................pencilPCM ................... PCM ...................pulse-code modulationPCM ................... PCM ...................photo contact masterPCMK................. pcmk ...................piece markPCS .................... PCS.....................Primary Coolant SystemPCT .................... pct ......................percentPCTM ................. PCTM .................pulse-count modulationPCU.................... PCU ....................power control unitPD...................... PD ......................pitch diameterPD...................... PD ......................pivoted doorPD...................... PD ......................point-detonatingPD...................... PD ......................potential differencePD...................... pd .......................punch diePDD.................... PDD....................plumbing and deck drainPDF .................... PDF ....................point-detonating fuzePDIO................... pdio.....................photodiodePDISCH............... PDISCH...............pump dischargePDISPL ............... PDISPL................positive displacementPDM ................... PDM ...................pulse-duration modulationPDR.................... PDR ....................power directional relayPDR.................... PDR ....................priority data reductionPDR.................... PDR ....................program drum recordingPDR (PWD).......... pdr (pwd) .............powderPDS .................... PDS ....................purchasing department specificationPDSD.................. PDSD ..................point-detonating self-destroyingPDVN ................. pdvn....................power-drivenPE ...................... PE ......................pinion end



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August, 2003

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PE ...................... PE ...................... probable errorPE ...................... PE ...................... pulley endPEC.................... PEC .................... photoelectric cellPECARD ............. pecard ................. production-estimate cardPED.................... ped ..................... pedestalPEJ..................... PEJ ..................... premolded expansion jointPELEC................ pelec ................... photoelectricPELR.................. pelr ..................... peelerPEN.................... pen ..................... penetratePEN.................... pen ..................... penetrationPEND ................. pend.................... pendingPENT.................. pent .................... pentodePEP .................... pep ..................... planar epitaxial passivated [transistor]PEP .................... pep ..................... producibility engineering and planningPER.................... per ...................... personPERC.................. perc .................... percussionPERD.................. perd .................... periodicPERF .................. perf..................... perfectPERF .................. perf..................... perforatePERF .................. perf..................... performedPERIS ................. peris.................... periscopePERM ................. perm ................... permanentPERM ................. perm ................... permissionPERMB............... permb.................. permeabilityPERP .................. perp .................... perpendicularPERS .................. pers..................... personnelPERSP ................ persp ................... perspectivePERT.................. PERT .................. performance evaluation and review techniquePES .................... PES .................... photoelectric scannerPETN.................. PETN.................. pentaerythryte tetranitratePETRO................ petro ................... petroleumPF ...................... PF ...................... point of frogPF ...................... PF ...................... power factorPF ...................... Pf ....................... profilePF ...................... PF ...................... pulse frequencyPFB .................... PFB .................... preformed beamPFD.................... pfd...................... preferredPFM ................... PFM.................... power-factor meterPFM ................... PFM.................... pulse-frequency modulationPG...................... PG...................... pressure gagePG...................... PG...................... proving groundPGMT................. pgmt ................... pigmentPGT.................... pgt ...................... pigtailpH...................... pH ...................... hydrogen-ion concentrationPH...................... ph....................... phasePHAR ................. phar .................... pharmacyPHARMACOL...... pharmacol ............ pharmacologicalPHBRZ ............... phbrz................... phosphor bronzePHCVSD ............. PHCVSD ............. phase conversion and step/downPHEN ................. phen.................... phenolicPHH ................... PHH.................... phillips headPHM................... phm .................... phantomPHM................... phm .................... phase meter



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August, 2003

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PHOC ................. P ........................photocopyPHOFL................ phofl ...................photoflashPHONO ............... phono ..................phonographPHOS.................. phos ....................phosphatePHOS.................. phos ....................phosphorescentPHOTO ............... photo ...................photographPHOTOLITH ........ photolith...............photolithographicPHP .................... php .....................pound per horsepowerPHR.................... phr ......................phrasePHR.................... PHR ....................pound-force per hourPHR.................... phr ......................preheaterPHRHD ............... PHRHD ...............pump, hydraulic-ram, hand-drivenPHT .................... pht ......................preheatPHYS.................. phys ....................physicalPHYSIOL ............ physiol.................physiologicalPI ....................... PI .......................point of intersectionPI ....................... PI .......................point-initiatingPI ....................... PI .......................point-insulatingPI ....................... PI .......................production illustrationPI ....................... PI .......................programmed instructionPIBD................... PIBD...................point-initiating, base-detonatingPIC ..................... PIC .....................polyethylene-insulated conductorPICE ................... PICE ...................programmable integrated control equipmentPIL ..................... PIL .....................purple indicating lightPIM .................... PIM.....................pulse-interval modulationPIN..................... PIN .....................part or identification numberPIN..................... pin ......................pinionPIN..................... PIN .....................position indicatorPIN..................... PIN .....................positive-intrinsic-negative [transistor]PINSTD............... pinstd ..................preinsertedPION................... pion.....................pioneerPIV..................... PIV .....................post indicator valvePIX..................... pix ......................picturePJCTL................. pjctl.....................projectilePJTN................... pjtn .....................projectionPJTR................... pjtr......................projectorPKG.................... pkg .....................packagePKT .................... pkt ......................pocketPKWY................. pkwy ...................parkwayPL ...................... pl........................padlockPL ...................... PL ......................parting line [castings]PL ...................... PL ......................parts listPL ...................... PL ......................pitch linePL ...................... pl........................placePL ...................... pl........................plainPL ...................... pl........................platePL ...................... PL ......................power and lightingPL ...................... PL ......................property linePL ...................... PL ......................proportional limitPL ...................... pl........................placesPL1..................... PL1.....................programming language 1PLA .................... PLA ....................programmable logic arrayPLAS .................. plas .....................plaster



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PLATF................ platf .................... platformPLB.................... PLB .................... pull buttonPLBLK................ PLBLK................ pillow blockPLC.................... PLC .................... power-line carrierPLC.................... PLC .................... programmable logic controllerPLD.................... pld ...................... pay loadPLD.................... pld ...................... platedPLDISTR............. pldistr.................. power and lighting distributionPLG.................... plg ...................... pilingPLGL.................. plgl ..................... plate glassPLGR.................. plgr..................... plungerPLK.................... plk ...................... plankPLKR.................. plkr..................... peacoat lockerPLL .................... pll....................... palletPLMB ................. plmb ................... plumbingPLN.................... pln ...................... planePLNG ................. plng .................... planningPLNR.................. plnr..................... planarPLNT.................. plnt ..................... planetPLNTY ............... plnty ................... planetaryPLOT.................. plot ..................... plottingPLQ.................... plq ...................... plaquePLR.................... plr ...................... pillarPLR.................... plr ...................... pliersPLR.................... plr ...................... pullerPLRD.................. PLRD.................. pull rodPLRS .................. plrs ..................... pelorusPLRSTN.............. PLRSTN .............. pelorus standPLRT.................. plrt...................... polarityPLS .................... pls ...................... pulsePLSN.................. plsn..................... pulsationPLSR .................. plsr ..................... pulsatorPLSTC ................ plstc .................... plasticPLT .................... plt....................... pilotPLT .................... PLT .................... port lightPLTG.................. pltg ..................... platingPLTHS................ plths.................... pilothousePLTLT ................ pltlt..................... pilot lightPMVR................. pmvr ................... prime moverPN...................... PN...................... part numberPNDLR ............... pndlr ................... pendularPNEU ................. pneu.................... pneumaticPNH ................... PNH.................... pan headPNIP................... PNIP ................... positive-negative-intrinsic-positive [electron device]PNL.................... pnl ...................... panelPNNT ................. pnnt .................... pennantPNP.................... PNP .................... positive-negative-positive [transistor]PNPN.................. PNPN.................. positive-negative-positive-negative [electron device]PNT.................... pnt ...................... paintPNTGN ............... pntgn................... pentagonPNTSTGR ........... PNTSTGR............ painting stringerPO...................... PO...................... paints and oilsPO...................... po....................... part of



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PO...................... po .......................pickled and oiledPO...................... PO ......................post officePO...................... PO ......................power oscillatorPO...................... PO ......................production orderPO...................... PO ......................purchase orderPOE .................... POE ....................port of embarkationPOGO ................. POGO..................polar orbiting geophysical observatoryPOL .................... pol ......................polarPOL .................... pol ......................polishPOL .................... POL ....................petroleum, oils and lubricantPOLTHN ............. POLTHN..............polyethylene [insul]POLYEST............ polyest .................polyesterPOMSEE ............. POMSEE..............Performance, Operational, and Maintenance Standards for Electronic

EquipmentPON.................... pon .....................pontoonPOP .................... pop .....................poppingPOPD.................. POPD ..................power-operatedPOR.................... por ......................porroPORC.................. porc.....................porcelainPORM................. PORM .................plus or minusPORT.................. port .....................portablePOS .................... pos......................positivePOSN.................. posn ....................positionPOT .................... pot ......................potentialPOT .................... pot ......................potentiometerPOTW................. POTW .................potable waterPP ...................... PP.......................panel pointPP ...................... PP.......................peak to peakPP ...................... pp .......................pipingPP ...................... PP.......................point-to-pointPP ...................... PP.......................power plantPP ...................... pp .......................pressure proofPP ...................... pp .......................push-pullPP ...................... pp .......................polypropylenePPB .................... PPB.....................provisioning parts breakdownPPE .................... ppe......................pipettePPG .................... ppg .....................pipe plugPPI ..................... ppi ......................plan position indicatorPPI ..................... ppi ......................plane position indicatorPPKG.................. PPKG ..................power packagePPLN .................. ppln.....................pipelinePPM.................... PPM....................pulse-position modulationPPMIN ................ ppmin ..................pulse per minutePPP..................... PPP.....................pull and push platePPR .................... ppr ......................paperPPT .................... ppt ......................poppetPPT .................... ppt ......................precipitatePPTR .................. PPTR...................page printerPR ...................... PR ......................pipe railPR ...................... PR ......................purchase requestPRAC.................. prac.....................practicePRB .................... prb ......................parabolaPRBD.................. prbd ....................paraboloid



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August, 2003

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PRBLC................ prblc ................... parabolicPRBNT ............... prbnt ................... prebentPRC.................... prc ...................... piercePRC.................... PRC.................... point of reverse curvePRCH ................. prch .................... prechargePRCHT ............... prcht ................... parachutePRCMT............... prcmt .................. procurementPRCN ................. prcn .................... precisionPRCPTN.............. prcptn.................. precipitinPRCS.................. prcs..................... processPRCSG................ prcsg ................... processingPRCSSPEC .......... PRCSSPEC .......... process specification [no number]PRCST................ prcst.................... precastPRD ................... PRD.................... push rodPREAMP............. preamp ................ preamplifierPREC.................. prec .................... precedencePRECP................ precp................... precipitationPREF .................. pref..................... preferencePREF .................. pref..................... prefixPREF .................. pref..................... prefocusedPREFAB.............. prefab.................. prefabricatedPREFMD............. prefmd................. preformedPRELIM .............. prelim.................. preliminaryPRELORTR ......... PRELORTR.......... precision long-range tracking radarPREM ................. prem ................... premiumPREP .................. prep .................... preparationPREP .................. prep .................... preparePRES .................. pres..................... presentPRESCR.............. prescr .................. prescriptionPRESS ................ press ................... pressurePREV.................. prev .................... previousPRF .................... prf ...................... proofPRF .................... PRF .................... pulse-repetition frequencyPRFCN................ prfcn ................... purificationPRFCS ................ prfcs.................... prefocusPRFM ................. prfm.................... performancePRFRD................ prfrd.................... proofreadPRFT .................. PRFT .................. press fitPRFT .................. PRFT .................. presser footPRG ................... prg...................... purgePRGM................. prgm ................... programPRGMG .............. prgmg.................. programmingPRGMRGTR ........ prgmrgt................ program registerPRI..................... pri ...................... primaryPRI..................... pri ...................... priorityPRIS ................... PRIS ................... Propeller Revolution Indicator SystemPRKG ................. prkg .................... parkingPRL.................... prl ...................... parallelPRM ................... prm..................... primePRM ................... prm..................... primingPRMLD............... prmld .................. premoldedPRMR................. prmr.................... primerPRMTR............... prmtr................... parameter



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PRNG ................. prng ....................purgingPRNTG................ prntg ...................printingPRO.................... PRO ....................propeller orderPROB.................. prob ....................probabilityPROB.................. prob ....................probablePROB.................. prob ....................problemPROC.................. proc.....................procedurePROC.................. proc.....................proceedingsPROCU ............... PROCU................processing unitPROD ................. prod ....................productPROD ................. prod ....................productionPROG ................. prog ....................progressPROG ................. prog ....................progressionPROJ................... proj .....................projectPROP .................. prop ....................propelledPROP .................. prop ....................propellerPROP .................. prop ....................propellingPROP .................. prop ....................propertyPROP .................. prop ....................proprietorPROPN................ propn...................proportionPROT.................. prot .....................protectivePROTDEV ........... PROTDEV ...........protective devicePROTO................ proto ...................prototypePROTR................ protr ....................protractorPROV ................. prov ....................provisionPROX ................. PROX..................proximity [fuze]PRP .................... PRP.....................pulse repetition periodPRP .................... prp ......................purplePRP .................... prp ......................purposePRPHL ................ prphl ...................peripheralPRPLN ................ prpln ...................propulsionPRPLT ................ prplt ....................propellantPRPN .................. prpn ....................propanePRPSD ................ prpsd ...................proposedPRPSL................. prpsl....................proposalPRR .................... PRR ....................pulse-repetition ratePRS .................... prs ......................pressPRSD .................. prsd.....................pressedPRSDMET ........... PRSDMET ...........pressed metalPRSR .................. prsr .....................presserPRSRZ ................ prsrz....................pressurizePRSTC ................ prstc ....................prostheticPRT .................... PRT ....................pulse-repetition timePRTKT................ prtkt ....................parts kitPRV.................... prv ......................peak inverse [reverse] voltagePRV.................... PRV ....................pressure-reducing valvePRV.................... PRV ....................propeller revolutionPRX.................... prx ......................parallaxPS ...................... PS.......................chloropicrinPS ...................... ps .......................parallel-to-serialPS ...................... PS.......................passing scuttlePS ...................... PS.......................point of switchPS ...................... PS.......................polystyrene



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August, 2003

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PS ...................... ps ....................... port and starboardPS ...................... PS ...................... power supply (comb form)PS ...................... PS ...................... process specification [number]PS ...................... ps ....................... proof shot [projectile]PS ...................... PS ...................... pull switchPSF .................... PSF..................... pound-force per square footPSH.................... psh ..................... phase shinPSHD.................. PSHD.................. phase-shin driverPSI ..................... PSI ..................... pound-force per square inchPSI ..................... PSI ..................... protosynthex indexPSIV................... psiv..................... passivePSL .................... PSL .................... pipe sleevePSL .................... PSL .................... pressure sealPSLT .................. pslt ..................... port side lightPSM ................... psm..................... prismPSNR.................. psnr .................... positionerPSP .................... PSP..................... pierced steel plankPSR .................... PSR .................... plow-steel ropePST .................... pst ...................... pastePST .................... pst ...................... pastryPST .................... PST .................... point of spiral tangentPSTL .................. pstl ..................... pistolPSTN.................. pstn..................... pistonPSU.................... PSU .................... power supply unitPSV.................... psv ..................... preservePSVT.................. psvt..................... passivatePSVTN................ psvtn ................... preservationPSVTV................ psvtv ................... preservativePSW ................... PSW ................... potential switchPSWBD............... PSWBD............... power switchboardPT ...................... pt ....................... pintPT ...................... PT ...................... pipe tapPT ...................... PT ...................... platinumPT ...................... PT ...................... pneumatic tubePT ...................... pt ....................... pointPT ...................... PT ...................... point of tangencyPT ...................... pt ....................... posts and timbersPT ...................... PT ...................... potential transformerPT ...................... pt ....................... printPT ...................... PT ...................... pulse timePTCT.................. ptct ..................... protectPTD.................... ptd ...................... paintedPTD.................... ptd ...................... printedPTFE .................. PTFE .................. polytetrafluorethylenePTL .................... ptl....................... patrolPTL .................... ptl....................... pintlePTLY.................. ptly ..................... partlyPTM ................... PTM ................... pulse-time modulationPTML ................. PTML ................. pnpn transistor magnetic logicPTMTLG............. PTMTLG ............. pitometer-logPTMUX............... PTMUX............... pulse-time multiplexPTN.................... ptn ...................... partitionPTO.................... pto ...................... power takeoff



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PTOUT................ ptout....................printoutPTR .................... ptr.......................printerPTY .................... pty ......................partyPU...................... PU ......................peripheral unit [computers]PU...................... pu .......................pickupPU...................... PU ......................power unitPUAR ................. PUAR..................pulse acquisition radarPUBN ................. pubn....................publicationPUJT................... PUJT ...................programmable unijunction [transistor]PUL .................... pul ......................pulleyPULV.................. pulv.....................pulverizerPUR.................... pur ......................purifierPURCH ............... purch ...................purchasePV...................... PV ......................plan viewPV...................... PV ......................pressure vesselPVC.................... PVC ....................polyvinyl chloridePVMTD............... PVMTD ...............preservation methodPVNT.................. pvnt.....................preventPVT .................... pvt ......................pivotPVT .................... pvt ......................pressure-volume-temperaturePW ..................... PW .....................passing windowPW ..................... PW .....................pivoted windowPW ..................... PW .....................plain washerPW ..................... PW .....................printed wiringPW ..................... PW .....................projected windowPW ..................... PW .....................pulse widthPWA................... PWA ...................printed-wiring assemblyPWB ................... PWB ...................printed wiring boardPWC ................... PWC ...................process water coolerPWDP ................. PWDP .................powder passingPWM .................. PWM...................pulse-width modulationPWR ................... pwr .....................powerPWRH................. pwrh....................powerhousePWRSPLY ........... PWRSPLY ...........power supplyPWTR ................. pwtr ....................pewterPWTR ................. PWTR .................pure waterPXSTR ................ pxstr ....................phototransistorPYGN ................. PYGN..................pyrogen unitPYR.................... pyr ......................pyramidPYRO ................. pyro ....................pyrotechnicPYROM............... pyrom..................pyrometer

QQ........................ Q ........................drone [aircraft]QA ..................... QA......................quality assuranceQA ..................... qa .......................question and answerQA ..................... QA......................quick-actingQB...................... QB......................quick-breakQC...................... QC......................quality controlQC...................... QC......................quick-cleaningQCI..................... QCI.....................quality conformance inspectionQCL.................... QCL....................quality characteristics listQCR ................... QCR....................quality control reliability



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August, 2003

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QDISC ................ QDISC ................ quick disconnectQDR ................... QDR ................... quality deficiency reportQDRNT............... qdrnt ................... quadrantQDRTR............... qdrtr.................... quadratureQEC ................... QEC.................... quick engine changeQF...................... QF...................... quick-firingQLIT .................. QLIT................... quick-look intermediate tapeQOD................... QOD ................... quick-opening deviceQOS ................... QOS.................... quality operating systemQPL.................... QPL.................... qualified products listQRY ................... qry...................... quarryQT ..................... qt ....................... quartQTB ................... QTB.................... quarry-tile baseQTF.................... QTF.................... quarry-tile floorQTR ................... QTR.................... quarry-tile roofQTR ................... qtr ...................... quarterQTRH ................. qtrh..................... quarter-hardQTRPH ............... qtrph ................... quarter-phaseQTRRD............... qtrrd.................... quarter-roundQTY ................... qty ...................... quantityQTZ.................... qtz ...................... quartzQUAD ................ quad.................... quadrangleQUADR .............. quadr................... quadrupleQUAL................. qual .................... qualitativeQUAL................. qual .................... qualityQUANT............... quant................... quantitativeQUASER............. QUASER ............. quantum amplification by stimulated emission of radiationQUAT................. quat .................... quaternaryQUEST ............... quest ................... questionQUIES ................ quies ................... quiescentQUIN.................. quin .................... quintupleQUOT................. quot .................... quotationQUOT................. quot .................... quotientQVT ................... QVT ................... quality verification testing

RR........................ r ......................... radar (comb form)R........................ r ......................... radiusR........................ r ......................... ratioR........................ r ......................... reconnaissance (aircraft)R........................ r ......................... redR........................ R........................ resistance (comb form)R........................ R........................ rightR........................ R........................ riserR........................ R........................ rubber sheathR&D................... R&D ................... research and developmentRA ..................... RA ..................... reduction of areaRAACT............... raact.................... radioactiveRAB ................... rab...................... rabbetRAC ................... RAC ................... rapid action changeRACT ................. RACT ................. reverse-actingRAD ................... rad...................... radiateRAD ................... rad...................... radio



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RAD ................... rad ......................radiusRADAR............... RADAR ...............radio detection and rangingRADAS ............... RADAS ...............random access discrete address systemRADCHM............ radchm.................radiochemistryRADDEF ............. RADDEF .............radiological defenseRADINSP ............ radinsp.................radiographic inspectionRADL ................. radl .....................radiologicalRADN................. radn.....................radiationRADOPR ............. RADOPR .............radio operatorRADWAR............ RADWAR ............radiological warfareRAIAM ............... RAIAM................random-access indestructive advanced memoryRALT.................. ralt ......................range lightRALW................. RALW.................radioactive liquid wasteRAM................... RAM...................random-access memoryRAMM................ RAMM ................recording ammeterRANCID.............. RANCID..............real and not-corrected input dataRAO ................... RAO ...................rudder angle orderRAR ................... RAR....................record and reportRASER................ RASER................radio frequency amplification by stimulated emission of radiationRAT.................... rat .......................rateauRATO ................. RATO..................rocket assist takeoffRB...................... RB ......................relay blockRB...................... RB ......................rubber baseRBBT.................. rbbt .....................rebabbitRBDE ................. RBDE..................radar bright display equipmentRBE.................... RBE ....................relative biological effectivenessRBK ................... RBK....................right bankRBN ................... rbn ......................ribbonRBR.................... rbr.......................rubberRC...................... RC ......................rate of changeRC...................... RC ......................reactor compartmentRC...................... RC ......................rear connectionRC...................... RC ......................rear-connectedRC...................... RC ......................reinforced concreteRC...................... RC ......................remote controlRC...................... RC ......................resistance-capacitanceRCC.................... RCC....................reader common contactRCC.................... RCC....................rubber-covered cableRCCP.................. RCCP ..................reinforced-concrete culvert pipeRCCPLD.............. RCCPLD..............resistance-capacitance coupledRCD ................... rcd ......................recordRCD ................... RCD....................reverse-current deviceRCG ................... RCG....................reverberation control of gainRCHG ................. RCHG .................reduced chargeRCHT ................. rcht .....................ratchetRCL.................... rcl .......................recallRCL.................... rcl .......................recoilRCLD ................. rcld .....................reclinedRCLMG............... rclmg...................reclaimingRCLS .................. rcls......................recoillessRCM................... RCM ...................radar countermeasuresRCMPRS ............. rcmprs .................recompressionRCN ................... rcn ......................recreation



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August, 2003

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RCNDT............... rcndt ................... reconditionRCNTR ............... RCNTR ............... ring counterRCO ................... RCO ................... reactor coreRCONT............... RCONT ............... rod controlRCP.................... RCP.................... reinforced-concrete pipeRCPT.................. rcpt ..................... receptacleRCPTN ............... rcptn ................... receptionRCS.................... RCS.................... Remote Control SystemRCTL.................. RCTL.................. resistor-capacitor-transistor logicRCTN ................. rctn ..................... reactionRCUR ................. rcur..................... recurrentRCV ................... rcv...................... receiveRCVD................. rcvd .................... receivedRCVG................. rcvg .................... receivingRCVR ................. rcvr..................... receiverRCVY................. rcvy .................... recoveryRD ..................... RD ..................... register driveRD ..................... RD ..................... roof drainRD ..................... RD ..................... root diameterRD ..................... rd ....................... rotodromeRDC ................... rdc ...................... radiacRDC ................... rdc ...................... reduceRDCN................. rdcn .................... reductionRDCR ................. rdcr..................... reducerRDDR................. rddr..................... rod driveRDF ................... RDF.................... radio direction findingRDG ................... rdg...................... ridgeRDG ................... rdg...................... roundingRDH ................... rdh...................... round headRDL ................... rdl ...................... radialRDM .................. RDM................... recording demand meterRDNG................. rdng .................... readingRDNS ................. rdns .................... readinessRDOUT............... rdout ................... readoutRDR ................... rdr ...................... readerRDR ................... rdr ...................... radarRDRXMTR.......... rdrxmtr ................ radar transmitterRDTR ................. rdtr ..................... radiator [automotive]RDX ................... rdx...................... cycloniteRDY ................... rdy...................... readyRE...................... RE...................... radiated emissionREAC ................. reac..................... reactanceREAC ................. reac..................... reactiveREAC ................. reac..................... reactorREACTVT........... reactvt ................. reactivateREC ................... rec ...................... recessREC ................... REC.................... request for engineering changeRECALC ............. recalc .................. recalculatedRECHRG............. rechrg.................. rechargerRECIP................. recip.................... reciprocateRECIRC .............. recirc................... recirculateRECL.................. recl ..................... recloseRECM................. recm.................... recommend



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RECMECH .......... recmech ...............recoil mechanismRECOG ............... recog ...................recognitionRECON ............... recon ...................reconnaissanceRECOND............. recond..................recondenseRECT.................. rect .....................rectangleRECT.................. rect .....................rectangularRECT.................. rect .....................rectifierRECY ................. recy.....................recoverabilityREDSG................ redsg ...................redesignateREF .................... ref.......................referenceREF .................... ref.......................refineryREFDES .............. refdes ..................reference designationREFL .................. REFL ..................reference lineREFL .................. refl......................reflectanceREFL .................. refl......................reflectorREFLD................ refld ....................reflectedREFR .................. reff......................refrigerateREGAL ............... regal....................range and evaluation guidance for approach and landingREGEN ............... regen ...................regenerateREGEN ............... regen ...................regenerativeREINF................. reinf ....................reinforceREJ..................... rej .......................rejectREL .................... rel .......................relativeREL .................... rel .......................releaseREL .................... REL ....................rescue equipment lockerRELBL................ relbl ....................reliabilityRELOC................ reloc....................relocatedREM ................... rem .....................remainderREM ................... rem .....................removableREMCOV ............ REMCOV.............removable coverREP .................... REP ....................range error probabilityREPB .................. repb.....................republicREPL .................. repl .....................replaceREPRO................ repro ...................reproduceREPT .................. REPT ..................reference engineering photo templateREQ.................... req ......................requestREQ.................... req ......................requireREQD ................. reqd.....................requiredREQN ................. reqn.....................requisitionREQT.................. reqt .....................requirementRES .................... res.......................researchRES .................... res.......................resistorRESC .................. resc .....................rescindRESEAT.............. reseat...................reseatingRESFLD .............. resfld ...................residual fieldRESID................. resid ....................residualRESIL ................. resil.....................resilientRESN.................. resn .....................resonantRESOLN.............. resoln ..................resolutionRESP .................. resp .....................respectivelyRESTR ................ restr.....................restorerRET .................... ret .......................retainRETNN ............... retnn....................retension



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RETR.................. retr...................... retracedRETR.................. retr...................... retractRETRO ............... retro .................... retroactiveRETROG............. retrog .................. retrogressiveREV ................... rev...................... reviewREV ................... rev...................... reviseREV ................... rev...................... revisionREV ................... rev...................... revolutionREVCUR............. revcur.................. reverse-currentREY ................... rey...................... reentryRF...................... RF ...................... radio frequencyRF...................... RF ...................... raised faceRFC.................... RFC.................... radio-frequency chokeRFCR.................. rfcr ..................... refacerRFD ................... RFD.................... raised face diameterRFG ................... rfg ...................... roofingRFGT.................. rfgt ..................... refrigerantRFH ................... RFH.................... raised face heightRFI..................... RFI ..................... ready for issueRFLX.................. rflx ..................... reflexRFM ................... RFM ................... reactive factor meterRFNA ................. RFNA ................. red fuming nitric acidRFND ................. rfnd..................... refinedRFRC.................. rffc ..................... refractoryRFS .................... RFS .................... regardless of feature sizeRFW................... RFW ................... reserve feedwaterRG ..................... RG ..................... reticulated gratingRGD ................... rgd...................... rigidRGH ................... rgh...................... roughRGLR ................. rglr ..................... regularRGLT ................. rglt...................... regulateRGLTR ............... rgltr .................... regulatorRGNG................. rgng .................... riggingRGTR ................. rgtr ..................... registerRH ..................... RH ..................... relative humidityRH ..................... RH ..................... right handRH ..................... RH ..................... Rockwell hardnessRHD ................... RHD ................... return headRHDR................. RHDR ................. right-hand driveRHEO ................. rheo .................... rheostatRHI .................... RHI .................... radio-frequency interferenceRHI .................... RHI .................... range-height indicatorRHK ................... rhk...................... reefing hookRHOD................. rhod .................... rhodiumRHOMB .............. rhomb.................. rhombicRHOMB .............. rhomb.................. rhomboidRHP ................... RHP.................... reduced hard pressureRHR ................... rhr ...................... reheaterRHR ................... RHR ................... roughness height ratingRHS ................... RHS.................... right-hand sideRI....................... RI....................... reflective insulationRIB .................... rib ...................... ribbedRIFI.................... RIFI .................... radio interference field intensity



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August, 2003

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RIL..................... RIL .....................red indicating lampRIM .................... RIM ....................radar input mapperRIN..................... rin.......................radio inertialRINSUL .............. RINSUL...............rubber insulationRIOT................... RIOT...................real-time input-output transducerRIS ..................... RIS .....................Revolution Indicating SystemRJH .................... RJH.....................rubber hose jacketRKR ................... rkr.......................rockerRKRA ................. RKRA .................rocker armRKT.................... rkt.......................rocketRKVAM .............. RKVAM ..............recording kilovolt-ampere meterRL...................... RL ......................resistance-inductanceRL...................... RL ......................rocket launcherRL...................... RL ......................roof leaderRLC.................... RLC ....................resistance-inductance-capacitanceRLCR.................. rlcr......................railcarRLD.................... rld.......................rolledRLF .................... rlf .......................reliefRLG.................... rlg.......................railingRLR.................... rlr .......................rollerRLT .................... rlt .......................relateRLTN.................. rltn......................relationRLV.................... rlv.......................relieveRLXN ................. rlxn .....................relaxationRLY.................... rly.......................relayRM ..................... RM .....................range marksRM ..................... RM .....................raw materialRMGF................. RMGF .................radar mapper, gap fillerRMH................... RMH...................refrigerator, mechanical householdRMJ.................... rmj......................ramjetRMLR................. RMLR .................radar mapper, long rangeRMR................... rmr......................reamerRMS ................... RMS ...................root mean squareRMT ................... rmt......................remoteRMV................... rmv .....................removeRND ................... rnd ......................roundRNDM ................ rndm ...................randomRNF.................... RNF ....................radio noise factor [figure]RNG ................... rng ......................rangeRNL.................... rnl.......................renewalRNLT.................. RNLT..................running lightRNWBL .............. RNWBL...............renewableRO...................... RO......................rough openingRO...................... RO......................runoutROT.................... ROT....................reserve oil tankROT.................... rot.......................rotateROTOMT ............ rotomt..................rotometerROTP.................. ROTP ..................receive-only tape perforatorROTR ................. rotr......................rotatorROUT ................. rout .....................routineRP ...................... RP ......................rules and proceduresRPD.................... RPD ....................radar planning deviceRPD.................... RPD ....................renewal parts data



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August, 2003

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RPDR ................. rpdr..................... reproducerRPG ................... RPG.................... report program generatorRPL.................... RPL .................... renewal parts leafletRPLNG ............... rplng ................... replenishingRPLR.................. rplr ..................... repellerRPLSN................ rplsn.................... repulsionRPM ................... RPM ................... revolution per minuteRPNSM............... rpnsm.................. replenishmentRPQ ................... RPQ.................... request for price quotationRPR.................... rpr ...................... repairRPRT.................. rprt ..................... reportRPS .................... RPS .................... revolution per secondRPS .................... RPS .................... rotating passing scuttleRPT.................... rpt ...................... repeatRPTC.................. RPTC.................. repeating coilRPTN.................. rptn..................... repetitionRPTR.................. rptr ..................... repeaterRPVNTV............. RPVNTV ............. rust preventativeRR ..................... rr ........................ railroadRR ..................... RR...................... rapid rectilinearRR ..................... RR...................... readout and relayRR ..................... RR...................... relief radiiRR ..................... rr ........................ remove and replaceRR ..................... RR...................... roll roofingRRI .................... RRI..................... range-rate indicatorRS...................... RS ...................... radiated susceptibilityRS...................... RS ...................... range surveillanceRS...................... RS ...................... ready serviceRS...................... RS ...................... right sideRS...................... RS ...................... rubble stoneRSALT................ RSALT................ running, signal, and anchor lightsRSD ................... rsd ...................... raisedRSD ................... RSD.................... rolling steel doorRSIM.................. RSIM .................. radar simulatorRSLVR ............... rslvr .................... resolverRSPD.................. rspd .................... respondRSPS .................. rsps..................... responseRSPTR................ rsptr .................... respiratorRSPV.................. rspv .................... respectiveRSQ ................... rsq ...................... rescueRSQBT ............... RSQBT................ rescue boatRSS .................... RSS .................... root sum squareRST.................... RST .................... radar startRST.................... RST .................... reinforcing steelRST.................... RST .................... reset-set triggerRST.................... rst....................... restoreRSTG.................. rstg ..................... roastingRSTPF ................ RSTPF ................ rustproofRSTR.................. rstr...................... restrictRSV ................... rsv ...................... reserveRSVR ................. rsvr ..................... reservoirRT...................... rt ........................ raintightRT...................... RT...................... real time



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August, 2003

Drawing Text Term


RT...................... RT ......................receiver-transmitterRT ...................... RT ......................rocket targetRTANG ............... RTANG ...............right angleRTC.................... RTC ....................reader tape contactRTCL.................. rtcl ......................reticleRTD.................... RTD....................resistance temperature detectorRTD.................... rtd.......................retardRTDC ................. RTDC..................retardation coilRTE .................... rte .......................routeRTEL .................. RTEL ..................radio telephonyRTF .................... RTF ....................rubber-tile floorRTG.................... rtg.......................ratingRTL .................... RTL ....................reinforced tile lintelRTL .................... RTL ....................resistor-transistor logicRTLG.................. RTLG..................radio telegraphRTM ................... RTM ...................recording tachometerRTN.................... rtn.......................returnRTNR ................. rtnr......................retainerRTPH.................. RTPH ..................round trips per hourRTR.................... rtr .......................rotorRTRV ................. rtrv......................retrieveRTRY ................. rtry......................rotaryRTT .................... RTT ....................radio teletypeRTTL .................. rttl.......................rattailRTTL .................. RTTL ..................running telltale lightRTTY.................. RTTY..................radio teletypewriterRTWS ................. RTWS .................raw tape write submoduleRU...................... RU......................reproducing unitRUD ................... rud ......................rudderRV...................... RV......................rear viewRV...................... RV......................reentry vehicleRV...................... RV......................relief valveRVA ................... RVA ...................reactive volt-ampere meterRVARM .............. RVARM ..............recording varmeterRVLV ................. rvlv .....................revolveRVM................... RVM...................reactive voltmeterRVP.................... RVP ....................reid vapor pressureRVS.................... rvs ......................reverseRVSBL................ rvsbl....................reversibleRVT.................... rvt.......................rivetRW..................... RW .....................raw waterRW..................... rw.......................read-write [head]RW..................... RW .....................right-of-wayRWC................... RWC...................rainwater conductorRWG................... RWG...................Roebling Wire GageRWHD ................ rwhd....................rawhideRWND ................ rwnd....................rewindRWY................... rwy .....................runwayRY...................... ry........................railwayRYN ................... ryn ......................rayonRZ...................... RZ ......................return-to-zero

S



Documentation


August, 2003

Drawing Text Term


S ........................ S ........................ scuttleS ........................ S ........................ source [electron device]S ........................ S ........................ SouthS1S..................... S1S..................... surfaced or dressed one sideS1S1E ................. S1S1E ................. surfaced or dressed one side and one edgeS2S..................... S2S..................... surfaced or dressed two sidesS4S..................... S4S..................... surfaced or dressed four sidesSA...................... SA...................... sail areaSA...................... SA...................... sense amplifierSA...................... SA...................... shaft alleySA...................... SA...................... small armsSA...................... SA...................... spectrum analyzerSA...................... SA...................... stress annealSAC ................... SAC.................... sprayed acoustical ceilingSAF.................... saf ...................... safetySAL.................... sal ...................... salinitySAL.................... sal ...................... salinometerSAL.................... sal ...................... salutingSAL.................... SAL.................... shipboard allowance listSALV ................. salv..................... salvageSAM................... SAM ................... surface-to-air missileSAN ................... san...................... sanitarySAP.................... SAP .................... semiarmor-piercingSAPC.................. SAPC.................. suspended acoustical-plaster ceilingSAPON ............... sapon .................. saponifySAR ................... SAR.................... storage address registerSAT.................... sat ...................... saturateSATC.................. SATC.................. suspended acoustical-tile ceilingSATL.................. satl...................... satelliteSATPATT............ SATPATT............ satellite paper-tape transfersSB...................... SB ...................... service bulletinSB...................... sb ....................... sidebandSB...................... SB ...................... silver brazeSB...................... SB ...................... silver brazingSB...................... SB ...................... sleeve bearingSB...................... SB ...................... solid bodySB...................... SB ...................... soot blowerSB...................... SB ...................... spin blockSB...................... SB ...................... splash blockSB...................... SB ...................... stove boltSB...................... SB ...................... stuffing boxSB...................... SB ...................... synchronization bitSBK ................... SBK.................... single-beam klystronSBM ................... sbm..................... submersibleSBS .................... SBS .................... semiconductor bilateral switchSBSP .................. SBSP .................. single-base solid propellantSBSTR................ sbstr .................... substrateSBU ................... SBU.................... silver brazing unionSBW................... SBW ................... steel basement windowSC...................... SC ...................... saturable coreSC...................... sc ....................... scaleSC...................... SC ...................... shaft centerSC...................... SC ...................... shaped charge



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August, 2003

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SC ...................... sc........................single conductorSC ...................... SC ......................single-contactSC ...................... SC ......................smooth contourSC ...................... sc........................spacecraftSCA.................... SCA ....................subcarrier authorizationSCAN ................. SCAN..................antenna scanSCAT.................. SCAT ..................sequential component automatic testingSCAV ................. scav.....................scavengeSCC .................... SCC ....................single-conductor cableSCD.................... SCD ....................screen doorSCD.................... SCD ....................specification control drawingSCDP .................. SCDP ..................steel cadmium platedSCDR.................. SCDR..................screwdriverSCE .................... sce ......................sourceSCH.................... SCH ....................socket headSCHED................ sched ...................scheduleSCHEM ............... schem ..................schematicSCHLT................ schlt ....................searchlightSCI ..................... sci.......................scienceSCINT................. scint ....................scintillatorSCLER ................ scler ....................scleroscopeSCLY.................. scly .....................scullerySCMOD............... SCMOD...............scale modelSCNG ................. scng ....................scanningSCNR.................. scnr .....................scannerSCNTN................ SCNTN................self-containedSCONT................ SCONT................ship controlSCOPE ................ scope ...................oscilloscopeSCOU ................. SCOU..................ship courseSCP .................... scp ......................scopeSCR .................... scr.......................screwSCR .................... SCR ....................semiconductor controlled rectifierSCR .................... SCR ....................short-circuit ratioSCRDB ............... scrdb ...................screwed bonnetSCRDN ............... SCRDN................screw downSCRGT................ SCRGT................screen gateSCRN.................. scrn .....................screenSCRTHD ............. SCRTHD..............screw threadSCS .................... SCS.....................semiconductor controlled switchSCSH .................. SCSH ..................structural carbon steel, hardSCSM ................. SCSM..................structural carbon steel, mediumSCSS................... SCSS...................structural carbon steel, softSCT .................... SCT ....................structural clay tileSCTD.................. sctd .....................scatteredSCTR .................. sctr......................scooterSCTR .................. sctr......................sectorSCTY.................. scty .....................securitySCUP .................. scup ....................scupperSCYL.................. SCYL ..................single-cylinderSD...................... SD ......................self-destroyingSD...................... SD ......................shell-destroyingSD...................... SD ......................shower drainSD...................... SD ......................spectral distribution



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August, 2003

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SDBL.................. sdbl..................... sandblastSDFTN................ SDFTN................ soda fountainSDG ................... sdg ..................... sidingSDGH ................. SDGH ................. sweet doughSDIS................... SDIS ................... ship distanceSDIS................... SDIS ................... Ship Draft Indicating SystemSDIT................... SDIT................... ship draft indicator transmitterSDL.................... sdl ...................... saddleSDNSU ............... SDNSU ............... stepdown and stepupSDR ................... sdr ...................... senderSDR ................... sdr ...................... sounderSE ...................... SE ...................... single-endSE ...................... SE ...................... special equipmentSE ...................... SE ...................... support equipmentSEC.................... sec ...................... secantSEC.................... sec ...................... secondSEC.................... sec ...................... secondarySECH.................. sech .................... hyperbolic secantSECO.................. SECO.................. sequential codingSECRG ............... secrg ................... securingSECT.................. sect ..................... sectionSED.................... sed...................... sedanSEDC.................. SEDC.................. steam engine direct-connectedSEG.................... seg...................... sealingSEG.................... seg...................... segmentSEJ..................... SEJ ..................... sliding expansion jointSEL .................... sel ...................... selectSEL .................... sel ...................... selectivitySEL .................... sel ...................... selectorSELFCL .............. SELFCL .............. self-closingSELFPROP .......... selfprop ............... self-propelledSELS .................. sels ..................... selsynSELSYN.............. selsyn .................. self-synchronousSEM ................... SEM ................... scanning electron microscopeSEMICOND ......... semicond.............. semiconductorSEN.................... sen...................... semienclosedSEN.................... sen...................... senseSENS.................. sens .................... sensitiveSENS.................. sens .................... sensitivitySEOPSN.............. SEOPSN .............. select-operate senseSEP .................... sep...................... separateSEP .................... Sep ..................... SeptemberSEP .................... SEP .................... star epitaxial planarSEQ.................... seq...................... sequenceSEQCHK............. seqchk ................. sequence checkSER.................... ser ...................... serialSER.................... ser ...................... seriesSERG.................. serg..................... servingSERNO ............... SERNO ............... serial numberSERR.................. serr ..................... serrateSERVO ............... servo ................... servomechanismSESAME ............. SESAME ............. service, sort and mergeSET .................... set ...................... setting



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August, 2003

Drawing Text Term


SETLG ................ setlg ....................settlingSETR .................. setr......................setterSEW ................... sew .....................sewageSEW ................... sew .....................sewerSF ...................... SF.......................sea floodSF ...................... sf ........................semifinishedSF ...................... SF.......................slip fitSF ...................... SF.......................spot-faceSFA .................... SFA ....................service-factor amperesSFB .................... SFB.....................solid fiberboardSFC .................... SFC.....................specific fuel consumptionSFDR .................. SFDR ..................single-feederSFLS................... sfls......................semiflushSFO .................... SFO ....................service fuel oilSFO .................... SFO ....................spot-face other sideSFPRF................. sfprf ....................semifireproofSFSCT................. SFSCT.................smooth-face structural clay tileSFT .................... sft .......................shaftSFTEXT .............. SFTEXT ..............shaft extensionSFTR .................. sftr ......................shipfitterSFW ................... sfw......................softwareSFXD.................. sfxd.....................semifixedSG...................... SG ......................single-groove [insul]SG...................... SG ......................structural glassSG...................... SG ......................swamp gliderSGB.................... SGB ....................switchgear blockSGDE.................. SGDE..................steering gear dual emergencySGL .................... sgl ......................singleSGSFU ................ SGSFU ................salt-glazed structural facing unitsSGSP .................. sgsp.....................single-groove single-petticoat [insul]SGSUB................ SGSUB................salt-glazed structural unit baseSGW................... SGW ...................security guard windowSH...................... SH ......................scleroscope hardnessSH...................... sh .......................shackleSH...................... sh .......................shareSH...................... sh .......................sheetSH...................... sh .......................sheetingSH...................... SH ......................shield [electronic device]SH...................... sh .......................showerSH...................... sh .......................shuntSHABS................ SHABS................shock absorberSHBL.................. SHBL ..................shot blastSHBLDR ............. shbldr ..................shipbuilderSHCONN............. SHCONN .............shore connectionSHCR.................. SHCR..................shipping centerSHF .................... shf ......................shiftSHF .................... shf ......................superhigh frequencySHFGR................ SHFGR................shaft gearSHK.................... shk......................shankSHL .................... shl ......................shellSHL .................... shl ......................shellacSHLD.................. shld .....................shieldSHLD.................. shld .....................shielding



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August, 2003

Drawing Text Term


SHLDR ............... shldr.................... shoulderSHLN ................. shln..................... shorelineSHLT.................. SHLT.................. signal and homing lightSHMKR .............. shmkr .................. shoemakerSHN ................... shn ..................... shownSHORAN............. SHORAN............. short range navigationSHORT ............... short.................... short circuitSHP.................... shp ..................... shapeSHPBD ............... SHPBD................ shipboardSHPCL................ SHPCL ................ ship classSHPNG ............... shpng .................. shippingSHPRF................ shprf ................... shakeproofSHPT.................. shpt..................... shipmentSHRAP ............... shrap ................... shrapnelSHRD ................. shrd .................... shroudSHRDF ............... SHRDF................ shroud finSHRDR ............... shrdr ................... shredderSHRNG............... shrng................... shearingSHRP.................. shrp .................... sharpenerSHSTS ................ SHSTS ................ ship statusSHT.................... sht ...................... shower and toiletSHTC.................. SHTC.................. short time constantSHTDN ............... shtdn ................... shutdownSHTHG ............... shthg ................... sheathingSHTL.................. shtl ..................... shuttleSHTR.................. SHTR.................. shunt tripSHTR.................. shtr ..................... shutterSHTSD................ SHTSD................ short sideSHV ................... shv ..................... sheaveSI ....................... SI ....................... International System of UnitsSI ....................... SI ....................... salinity indicatorSI ....................... SI ....................... standing instructionSI ....................... SI ....................... Systeme International d'UnitesSID..................... SID..................... seal-in deviceSID..................... SID..................... sudden ionospheric disturbanceSIF ..................... SIF ..................... selective identification featureSIF ..................... SIF ..................... single-faceSIG..................... sig ...................... signalSIL ..................... sil ....................... silenceSIL ..................... sil ....................... silverSILG................... silg ..................... silencingSILS ................... SILS ................... silver solderSILT ................... SILT ................... side lightSIM .................... sim ..................... similarSIM .................... sim ..................... simulatorSIMCOM............. SIMCOM............. simulator compilerSIMP .................. SIMP .................. specific impulseSIN..................... sin ...................... sineSINH .................. sinh..................... hyperbolic sineSINS................... SINS ................... Ship Inertial Navigational SystemSIS ..................... SIS ..................... standard instruction setSIT ..................... sit ....................... situationSIWDR ............... siwdr................... sidewinder



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August, 2003

Drawing Text Term


SJ ....................... SJ .......................slip jointSK...................... sk .......................sketchSK...................... sk .......................skinnedSK...................... sk .......................skinnerSKD.................... skd......................skirtedSKLT .................. SKLT ..................station keeping lightsSKT .................... skt ......................skirtSKT .................... skt ......................socketSL ...................... SL ......................safe lockerSL ...................... SL ......................sand-loadedSL ...................... SL ......................sea levelSL ...................... sl ........................slideSL ...................... sl ........................slidingSLB .................... SLB ....................side-lobe blankingSLB .................... SLB ....................signal light bareSLBL .................. slbl......................solubleSLC .................... SLC ....................side-lobe cancellationSLC .................... slc.......................sliceSLD .................... sld ......................sealedSLD .................... SLD ....................sliding doorSLD .................... sld ......................slowdownSLDR.................. sldr .....................solderSLDR.................. sldr .....................solderingSLF .................... SLF.....................straight-line frequencySLFCLN .............. SLFCLN ..............self-cleaningSLFGEN.............. slfgen ..................self-generatingSLFIND............... slfind ...................self-indicatingSLFLKG.............. slflkg ...................self-lockingSLFSE................. slfse ....................self-sealingSLFTPG .............. slftpg ...................self-tappingSLG .................... slg ......................sludgeSLGR.................. slgr .....................slingerSLP .................... SIP......................slopeSLPL................... SIPI.....................sea loading pipelineSLR .................... SLR ....................side looking radarSLS .................... SLS.....................sea level staticSLS .................... SLS.....................side-lobe suppressionSLSP................... SLSP ...................slow speedSLT .................... slt .......................skylightSLT .................... slt .......................slateSLT .................... slt .......................spotlightSLTD .................. sltd......................slottedSLV .................... SIV .....................sleeveSLVG.................. slvg .....................sleevingSLVT .................. slvt......................solventSLWL ................. SLWL..................straight-line wavelengthSLYP .................. SLYP ..................shortleaf yellow pineSM ..................... sm ......................smallSM ..................... sm ......................smoothingSM ..................... SM......................strategic missileSMACH............... SMACH...............sounding machineSMD ................... SMD ...................standard military drawingSMD ................... SMD ...................submarine mine depot



Documentation


August, 2003

Drawing Text Term


SMK................... smk..................... smokeSMKGEN ............ SMKGEN ............ smoke generatorSMKLS ............... smkls .................. smokelessSMLS ................. smls .................... seamlessSMNK ................ SMNK................. smooth neckSMP ................... SMP.................... sensitized material printSMP ................... SMP.................... sound motion pictureSMPHR............... smphr .................. semaphoreSMPLG ............... smplg .................. samplingSMS ................... SMS.................... silicomanganese steelSMSA ................. SMSA ................. shop missile assembly and maintenanceSMTK................. SMTK ................. sump tankSMUT................. SMUT ................. shrink mockup templateSMY................... smy..................... summarySN...................... SN...................... sine of the amplitudeSN...................... sn ....................... sirenSN...................... SN...................... solid neutralSNBR ................. snbr .................... snubberSND ................... snd ..................... soundSNDG ................. sndg .................... sendingSNDG ................. sndg .................... soundingSNDPRF.............. sndprf.................. soundproofSNF.................... SNF .................... system noise figureSNH ................... snh ..................... snatchSNKL ................. snkl..................... snorkelSNL.................... SNL.................... standard nomenclature listSNLG ................. snlg..................... signalingSNO ................... SNO.................... stock numberSNR ................... SNR.................... signal-to-noise ratioSNR ................... snr ...................... sonarSNSL.................. SNSL .................. stock number sequence listingSNSR.................. snsr..................... sensorSNTR.................. sntr ..................... sinterSNTR.................. sntr ..................... sinteredSNTZD ............... sntzd ................... sensitizedSNTZG ............... sntzg ................... sensitizingSNY ................... sny ..................... sunnySO...................... SO...................... shop orderSO...................... SO...................... slow operate [relay]SO...................... SO...................... stock orderSO...................... SO...................... stop orderSOAR ................. SOAR ................. safe operating areaSOCD ................. SOCD ................. source control drawingSOCN ................. SOCN ................. source control numberSOL.................... sol ...................... solenoidSOL.................... sol ...................... solidSOLHGT ............. SOLHGT ............. solid heightSOLN ................. soln..................... solutionSOLV ................. SOLV.................. solenoid valveSONAC............... SONAC ............... sonar narcelle (sonacelle)SONAR............... SONAR ............... sound navigation and rangingSONB ................. sonb .................... sonobuoySONCM .............. SONCM............... sonar countermeasures and deception



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August, 2003

Drawing Text Term


SONCR ............... SONCR................sonar control roomSONOSW ............ sonosw.................sonoswitchSOP .................... SOP ....................scavenging oil pumpSOV.................... SOV....................shutoff valveSP ...................... SP.......................one-poleSP ...................... SP.......................sample partSP ...................... SP.......................shear plateSP ...................... SP.......................single-poleSP ...................... SP.......................smokeless powderSP ...................... SP.......................soil pipeSP ...................... sp .......................spaceSP ...................... sp .......................spareSP ...................... SP.......................spare partSP ...................... sp .......................special (comb form)SP ...................... sp .......................special [projectile]SP ...................... SP.......................special-purposeSP ...................... sp .......................specificSP ...................... sp .......................speedSP ...................... SP.......................splashproofSP ...................... sp .......................splittingSP ...................... sp .......................spoolSP ...................... SP.......................stake and platformSP ...................... sp .......................standpipeSPAT .................. SPAT ..................silicon precision alloy transistorSPC .................... SPC.....................special common [projectile]SPC .................... SPC.....................suspended plaster ceilingSPCC .................. SPCC ..................ship parts control centerSPCHG................ spchg...................superchargeSPCL .................. SPCI ...................specialSPCLN ................ SPCLN ................special cleaningSPCONV ............. SPCONV..............speed converterSPCR .................. spcr .....................spacerSPCTG ................ SPCTG ................spherical cartridgeSPDL .................. spdl .....................spindleSPDOM ............... SPDOM ...............speedometerSPDR .................. spdr.....................spiderSPDS .................. SPDS...................safe-practice data sheetSPDT .................. SPDT ..................single-pole double-throwSPDTSW ............. SPDTSW..............single-pole double-throw switchSPEC .................. spec.....................specificationSPEC .................. spec.....................specimenSPFT................... SPFT...................desk, single-pedestal flat-topSPG .................... spg......................spoolingSPGR .................. SPGR ..................specific gravitySPH .................... SPH ....................single-phaseSPH .................... SPH ....................space heaterSPHER ................ spher ...................sphericalSPHN.................. sphn ....................siphonSPHT .................. SPHT ..................specific heatSPK .................... spk......................sparkSPK .................... spk......................spikeSPKR .................. spkr.....................speakerSPL .................... spl ......................spiral



Documentation


August, 2003

Drawing Text Term


SPL .................... SPL .................... splice listSPLC .................. SPIC ................... spliceSPLN.................. spln..................... splineSPLT .................. SPLT .................. speed lightSPLTR ................ spltr .................... splitterSPLWPN ............. SPLWPN ............. special weaponsSPLX.................. splx..................... simplexSPLY.................. sply..................... supplySPM ................... SPM.................... shots per minuteSPNR.................. spnr .................... spannerSPNSN................ spnsn................... suspensionSPP .................... SPP..................... still picture projectorSPPH .................. SPPH .................. split-phaseSPPL .................. SPPL................... spark plugSPR .................... spr ...................... springSPR .................... spr ...................... sprinklerSPRDR................ sprdr ................... spreaderSPREG................ SPREG ................ speed regulatorSPRG.................. sprg .................... sprinklingSPRKT................ sprkt.................... sprocketSPRT .................. sprt ..................... supportSPS .................... SPS..................... special servicesSPSCR ................ SPSCR ................ special screwSPSHP ................ SPSHP ................ special shapedSPST .................. SPST................... single-pole single-throwSPSTSW.............. SPSTSW.............. single-pole single-throw switchSPSW ................. SPSW.................. single-pole switchSPT .................... spt ...................... septupleSPT .................... spt ...................... spraytightSPTW ................. SPTW ................. desk, single-pedestal typewriterSPVN.................. spvn .................... supervisionSPVOL................ SPVOL................ specific volumeSPYR.................. spyr .................... sprayerSQ...................... sq ....................... squareSQ...................... SQ...................... superquickSQCG ................. SQCG ................. squirrel cageSQCM................. SQCM................. square centimeterSQFT.................. SQFT .................. square footSQH ................... SQH.................... square headSQIN .................. SQIN .................. square inchSQKM ................ SQKM................. square kilometerSQN ................... sqn ..................... squadronSQRT.................. SQRT.................. square rootSQW................... SQW................... square waveSQZGR ............... SQZGR ............... squeeze gripSR...................... SR ...................... saturable reactorSR...................... SR ...................... selective ringingSR...................... SR ...................... selenium rectifierSR...................... SR ...................... send and receiveSR...................... sr........................ seniorSR...................... SR ...................... shift registerSR...................... SR ...................... slip ringSR...................... SR ...................... slow release [relay]



Documentation


August, 2003

Drawing Text Term


SR ...................... SR ......................solid rocketSR ...................... SR ......................sound rangingSR ...................... SR ......................special regulationsSR ...................... SR ......................speed recorderSR ...................... SR ......................split ringSR ...................... sr ........................stateroomSRCH.................. srch .....................searchSRD.................... SRD ....................step-recovery diodeSRG.................... srg ......................surgeSRKN ................. SRKN..................single rotating knifeSRLY.................. SRLY ..................series relaySRNG ................. srng.....................syringeSROD ................. SROD..................stove rodSRPG .................. srpg.....................scrapingSRPR .................. srpr .....................scraperSRR .................... SRR ....................sound recorder-reproducerSRU.................... sru ......................shop replaceable unitSRVCLG ............. SRVCLG..............service ceilingSRVL.................. srvl .....................survivalSS ...................... ss........................ illuminating [projectiles]SS ...................... SS.......................same sizeSS ...................... ss........................semisteelSS ...................... SS.......................service sinkSS ...................... SS.......................ship serviceSS ...................... SS.......................single-shotSS ...................... SS.......................slop sinkSS ...................... ss........................smokestandSS ...................... SS.......................spin-stabilized [rockets]SS ...................... SS.......................straight shankSS ...................... ss........................subsystemSS ...................... SS.......................summing selectorSS ...................... ss........................single sidedSSAC .................. SSAC ..................suspended sprayed acoustical ceilingSSB .................... SSB.....................single-sidebandSSBD .................. SSBD ..................single-sideboardSSBO .................. SSBO ..................single swing blocking oscillatorSSBR .................. SSBR ..................smooth-surface built-up roofSSCR .................. sscr .....................set screwSSD .................... SSD ....................subsoil drainSSF..................... SSF.....................saybolt second furolSSI ..................... SSI......................sector scan indicatorSSIG ................... SSIG ...................single signalSSK .................... SSK ....................soil stackSSLT................... SSLT...................starboard side lightSSM.................... SSM....................surface-to-surface missileSSP..................... SSP.....................ship speedSSR .................... SSR.....................slate-shingle roofSST .................... SST.....................stainless steelSST .................... SST.....................supersonic transportSSTG .................. SSTG ..................ship service turbo generatorSSTU .................. SSTU ..................seamless steel tubingSSU .................... SSU ....................saybolt second universalSSV .................... SSV ....................static self-verification



Documentation


August, 2003

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SSW ................... SSW ................... synchro switchST ...................... st ........................ sawtoothST ...................... ST ...................... schmitt triggerST ...................... ST ...................... single-throwST ...................... ST ...................... single-tireST ...................... ST ...................... sounding tubeST ...................... st ........................ steamST ...................... st ........................ storeST ...................... st ........................ streetST ...................... ST ...................... strip-tinST ...................... st ........................ self-tappingSTA.................... sta ...................... stationSTA.................... sta ...................... stationarySTAB.................. stab..................... stabilizeSTAB.................. stab..................... stabilizerSTALO ............... STALO................ stabilized local oscillatorSTAMO............... STAMO............... stabilized master oscillatorSTAN ................. stan..................... stanchionSTART................ start .................... starterSTAT.................. stat...................... photostatSTAT.................. stat...................... statusSTB.................... STB .................... shore terminal boxSTB.................... stb ...................... stableSTBD.................. stbd..................... starboardSTBLN................ stbln.................... stabilizationSTBRZ................ STBRZ ................ statuary bronzeSTBSCP .............. stbscp .................. stroboscopeSTBY.................. stby..................... standbySTC.................... STC .................... sensitivity time controlSTCH.................. stch..................... stitchSTD.................... std ...................... standardSTDF.................. stdf ..................... standoffSTDVG ............... STDVG ............... stern divingSTDY ................. stdy..................... steadySTDZN ............... stdzn ................... standardizationSTER.................. ster ..................... seaterSTER.................. ster ..................... sterilizerSTEREO.............. stereo .................. stereophonicSTFG.................. stfg ..................... stuffingSTG.................... stg ...................... stageSTG.................... stg ...................... startingSTGEN ............... STGEN................ steam generatorSTGLT................ STGLT ................ steering lightSTGR.................. stgr ..................... stringerSTIF ................... stif ...................... stiffenerSTIR................... stir ...................... stirrupSTK.................... stk ...................... stackSTK.................... stk ...................... stockSTK.................... stk ...................... strakeSTL .................... stl ....................... steelSTL .................... STL .................... studio-transmitter linkSTLR.................. stlr ...................... semitrailerSTLT .................. stlt ...................... stellite



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August, 2003

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STLT .................. STLT...................stern lightSTMG ................. stmg ....................steamingSTML ................. stml.....................stimulateSTMT ................. stmt.....................statementSTN .................... stn ......................stoneSTNG.................. stng .....................sustainingSTNLS ................ stnls ....................stainlessSTOL .................. STOL ..................short takeoff and landingSTOR.................. stor .....................storageSTP .................... stp ......................stampSTP .................... stp ......................stripSTPD .................. stpd .....................strippedSTPDN................ stpdn ...................stepdownSTPL................... STPL...................stern planeSTPNG................ stpng ...................stoppingSTPR .................. STPR...................short taperSTPR .................. STPR...................static pressureSTPR .................. stpr .....................stepperSTPR .................. stpr .....................stripperSTR .................... str .......................straightSTR .................... str .......................strainerSTR .................... str .......................streamSTR .................... str .......................strengthSTR .................... str .......................strippingSTRAT................ strat.....................strategicSTRATO.............. strato ...................stratosphereSTRBK................ strbk....................strongbackSTRD.................. strd .....................strandSTRD.................. strd .....................strandedSTRG.................. strg .....................steeringSTRG.................. strg .....................strongSTRK.................. strk .....................strokeSTRL .................. strl ......................structuralSTRLN................ strln.....................streamlineSTRM ................. strm.....................storeroomSTRP .................. strp .....................strappedSTRUCT.............. struct ...................structureSTS .................... STS.....................special treatment steelSTSH .................. STSH ..................stabilized shuntSTSP................... STSP ...................start and stopSTTR .................. sttr ......................statorSTU .................... stu ......................stepupSTW ................... STW ...................storm waterSTWG................. stwg ....................stowageSTWP ................. STWP..................steam working pressureSTWY................. stwy ....................stairwaySUB.................... sub......................submarineSUBASSY............ subassy ................subassemblySUBCAL ............. subcal ..................subcaliberSUBJ................... subj .....................subjectSUBMG............... submg..................submergedSUBMG............... submg..................submergenceSUBMIN.............. submin.................subminiature



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August, 2003

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SUBQ ................. subq .................... subsequentSUBST................ subst ................... substituteSUBSTA ............. substa .................. substationSUBSTR.............. substr .................. substructureSUBTR ............... subtr.................... subtractionSUC ................... suc...................... succeedingSUCT.................. suct..................... suctionSUDT ................. SUDT.................. silicon unilateral diffused transistorSUF.................... suf ...................... sufficientSUFF .................. suff ..................... suffixSUJ .................... SUJ..................... side upset jawSUM................... sum..................... summingSUM................... SUM ................... surface-to-underwater missileSUPCUR ............. SUPCUR ............. superimposed currentSUPERHET.......... superhet ............... superheterodyneSUPERSTR.......... superstr................ superstructureSUPHTR ............. suphtr .................. superheaterSUPPL ................ suppl ................... supplementSUPPR................ suppr................... suppressionSUPPR................ suppr................... suppressorSUPSD................ supsd................... supersedeSUPSENS ............ supsens ................ supersensitiveSUPT.................. supt..................... superintendentSUPV.................. supv .................... superviseSURF.................. surf ..................... surfaceSURG ................. surg .................... surgicalSURGE ............... SURGE ............... sorting, updating, report generating, etc.SURV ................. surv .................... surveySUS.................... SUS .................... semiconductor unilateral switchSUSP .................. susp .................... suspendSV...................... SV...................... safety valveSV...................... SV...................... self-ventilatedSVCE.................. svce .................... serviceSVMTR............... svmtr................... servomotorSVO ................... svo ..................... servoSVR ................... svr ...................... serverSVTL.................. svtl ..................... semivitalSW..................... SW ..................... salt waterSW..................... SW ..................... short waveSW..................... SW ..................... single weightSW..................... SW ..................... spot-weldSW..................... sw ...................... swashSW..................... sw ...................... switchSW..................... SW ..................... switchband wound [relay]SWB................... SWB ................... short wheelbaseSWBD ................ swbd ................... switchboardSWBHD .............. SWBHD .............. swash bulkheadSWCP ................. SWCP ................. salt water circulating pumpSWD................... SWD................... side water depthSWG................... SWG................... British Standard Wire GageSWG................... SWG................... Stubs Wire GageSWG................... swg..................... swageSWG................... swg..................... swing



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August, 2003

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SWGBKT ............ SWGBKT.............swinging bracketSWGD................. SWGD.................swinging doorSWGR................. swgr ....................switchgearSWLDG............... SWLDG...............socket weldingSWOV................. swov ...................switchoverSWP ................... SWP....................safe working pressureSWP ................... SWP....................salt water pumpSWP ................... swp .....................sweepSWPEXP ............. SWPEXP..............sweep expandSWPINTEG.......... SWPINTEG ..........sweep integratorSWR ................... SWR ...................standing-wave ratio [voltage]SWR ................... SWR ...................switch railsSWS ................... SWS....................switch standSWSG ................. SWSG .................security window screen and guardSWT ................... swt......................sweatSWT ................... SWT ...................switch tiesSWVL................. swvl ....................swivelSXL .................... SXI .....................sexless [connector]SXT .................... sxt ......................sextupleSXTN.................. sxtn .....................sextantSYM ................... sym.....................symbolSYMM ................ symm ..................symmetricalSYMP ................. symp ...................symposiumSYN.................... syn......................synchronousSYNC ................. sync ....................synchronizeSYNCCONV ........ SYNCCONV.........synchronous converterSYNCOM ............ SYNCOM.............synchronous-orbiting communicationsSYNIND.............. SYNIND ..............synchronization indicatorSYNLP................ SYNLP ................synchronizing lampSYNRECP............ SYNRECP............synchronizing receptacleSYNSCP.............. synscp..................synchroscopeSYNTH ............... synth ...................syntheticSYNTI................. SYNTI.................synchro tieSYS .................... sys ......................system

TT ........................ T ........................ t-bar [structural shape]T ........................ T ........................ teethT ........................ t ......................... toiletT ........................ T ........................ total trimTAB.................... tab ...................... tabulateTABSIM.............. TABSIM .............. tabulator simulatorTABSOL.............. TABSOL.............. table solutionTAC.................... tac....................... tacticalTACAN ............... TACAN ............... tactical air navigationTACDEN ............. TACDEN ............. tactical data entryTACH ................. tach ..................... tachometerTAF .................... TAF .................... trim after formingTAL.................... tal ....................... tailorTAM................... TAM ................... technical ammunitionTAN ................... tan ...................... tangentTAN ................... tan ...................... tannedTANH ................. tanh.....................hyperbolic tangent



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August, 2003

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TAPAK ............... TAPAK ............... tape-packTAR ................... TAR.................... terrain-avoidance radarTARP.................. tarp ..................... tarpaulinTAS.................... TAS.................... true airspeedTB...................... TB...................... technical bulletinTB...................... TB...................... terminal boardTB...................... TB...................... tile baseTB...................... TB...................... tile blockTB...................... TB...................... top and bottomTBATT ............... TBATT................ torpedo battTBAX ................. TBAX ................. tube axialTBB ................... TBB.................... top and bottom boltTBC ................... TBC.................... toss bomb computerTBE.................... TBE.................... thread both endsTBG ................... tbg...................... tubingTBLK ................. tblk ..................... terminal blockTBLR.................. tblr...................... tumblerTC...................... TC...................... tape coreTC...................... TC...................... technical circularTC...................... TC...................... technical controlTC...................... TC...................... temperature compensatingTC...................... TC...................... terra cottaTC...................... tc........................ thermocoupleTC...................... TC...................... thread cuttingTC...................... TC...................... time constantTC...................... TC...................... timed closingTC...................... TC...................... toilet caseTC...................... TC...................... top chordTC...................... TC...................... trip coilTCC ................... TCC.................... turbine close coupledTCD ................... TCD.................... thyratron core driverTCG ................... TCG.................... tune-controlled gainTCH ................... TCH.................... temporary construction holeTCI..................... TCI..................... terrain-clearance indicatorTCTO ................. TCTO.................. time compliance technical orderTCU ................... TCU.................... tape control unitTD ..................... TD...................... tank destroyerTD ..................... TD...................... temperature differentialTD ..................... TD...................... testing deviceTD ..................... TD...................... tile drainTD ..................... TD...................... time delayTD ..................... TD...................... transmitter distributorTD ..................... TD...................... turbine directTD ..................... TD...................... turbine drivenTDC ................... TDC.................... time-delay closingTDCM ................ TDCM................. transistor driver core memoryTDG ................... TDG ................... twist drill gageTDH ................... TDH ................... total dynamic headTDISTR............... TDISTR............... tape distributorTDL.................... TDL.................... tunnel-diode logicTDM................... tdm ..................... tandemTDM................... TDM................... time division multiplexTDN ................... TDN ................... target doppler nullifier



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August, 2003

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TDO ................... TDO.................... time-delay openingTDR.................... TDR.................... torque-differential receiverTDS .................... TDS .................... track data simulatorTDST .................. TDST .................. track data storageTDT.................... TDT .................... target designation transmitterTDX ................... TDX.................... thermal demand transmitterTE ...................... TE ...................... tables of equipmentTE ...................... TE ...................... test and evaluateTE ...................... TE ...................... thermal elementTE ...................... TE ...................... totally enclosedTE ...................... TE ...................... trailing edgeTE ...................... TE ...................... transverse electricTECH.................. tech ..................... technicalTEDL.................. TEDL .................. transferred-electronlogic logicTEFC .................. TEFC .................. totally enclosed fan-cooledTEJ..................... TEJ ..................... transverse expansion jointTEL .................... tel ....................... telephoneTEL .................... TEL .................... telephone stationTELB .................. TELB .................. telephone boothTELECOM........... telecom ................ telecommunicationsTELMTR ............. telmtr................... telemotorTEM ................... tem ..................... temperTEM ................... TEM ................... transverse electromagneticTEMP ................. temp.................... temperatureTEMP ................. temp.................... temporaryTEMPL................ templ ................... templateTER .................... ter ....................... terrazzoTER .................... ter ....................... tertiaryTER .................... TER .................... trailing edge radiusTERB.................. TERB .................. terrazzo baseTERM ................. term .................... terminalTERMN............... termn................... terminationTET .................... tet ....................... tetrachlorideTET .................... tet ....................... tetrodeTETFLEYNE........ tetfleyne ............... tetrafluorethyleneTF ...................... TF ...................... thin filmTF ...................... TF ...................... thread formingTF ...................... TF ...................... tile floorTF ...................... TF ...................... time of failTFR .................... TFR .................... top of frameTFT .................... TFT..................... thin-film transistorTFZ .................... TFZ..................... tail fuzeTG...................... TG ...................... tail gearTG...................... TG ...................... tongue and grooveTG...................... TG ...................... torpedo groupTG...................... TG ...................... tracking and guidanceTGC.................... TGC.................... transmit gain controlTGL.................... tgl ....................... toggleTGLS .................. tgls...................... tonguelessTGT.................... TGT .................... tail gateTGT.................... tgt ....................... targetTH...................... th........................ thermoidTH...................... TH ...................... toilet-paper holder



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August, 2003

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THC ................... THC.................... thermal converterTHD ................... thd...................... threadTHD ................... THD ................... total harmonic distortionTHDNK............... THDNK............... threaded neckTHDPC ............... thdpc................... threadpieceTHEOR ............... theor ................... theoreticalTHERM............... therm .................. thermometerTHERMO ............ thermo................. thermostatTHK ................... thk...................... thickTHKF ................. THKF.................. thick filmTHKNR............... thknr ................... thickenerTHKNS ............... thkns ................... thicknessTHKR ................. thkr..................... thickerTHM................... thm ..................... thermTHMS................. thms.................... thermistorTHPFB................ THPFB ................ treated hard-pressed fiberboardTHR ................... thr ...................... thrustTHRM ................ thrm.................... thermalTHRMSTC........... thrmstc ................ thermostaticTHROT ............... throt .................... throttleTHRSHL ............. THRSHL ............. thrust shellTHRT ................. thrt...................... throatTHRU ................. thru..................... throughTHWR ................ thwr .................... throwerTHWT ................ thwt .................... throwoutTHYMOTROL...... THYMOTROL...... thyratron motor controlTHYR ................. THYR ................. thyristorTI....................... TI ....................... target identificationTI....................... TI ....................... track initiateTIC..................... TIC..................... temperature indicating controllerTIF ..................... TIF ..................... telephone interference factorTIM.................... TIM .................... time meterTIM.................... tim...................... track imitationTIP ..................... TIP ..................... turbine inlet pressureTIR..................... TIR..................... total indicator readingTIT..................... TIT ..................... turbine inlet temperatureTJP..................... TJP ..................... turbojet propulsionTKL.................... tkl....................... tackleTKR ................... tkr ...................... tankerTKT.................... TKT.................... ticketTL...................... TL ...................... thrust lineTL...................... TL ...................... tie lineTLG.................... TLG.................... tail landing gearTLG.................... tlg....................... telegraphTLG.................... tlg....................... tiltingTLK.................... TLK.................... test linkTLLD.................. TLLD.................. total loadTLM ................... tlm...................... telemeterTLMY................. tlmy .................... telemetryTLPC.................. tlpc ..................... tailpieceTLR.................... tlr ....................... tillerTLRMTD............. TLRMTD............. trailer mountedTLSCP ................ tlscp .................... telescope



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August, 2003

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TLSFT................. tlsft ..................... tailshaftTLU.................... TLU .................... table lookupTLY.................... tly ....................... tallyTM ..................... TM ..................... tactical missileTM ..................... TM ..................... technical manualTM ..................... TM ..................... temperature meterTM ..................... TM ..................... tone modulationTM ..................... TM ..................... training manualTM ..................... TM ..................... transverse magneticTMB ................... tmb ..................... thimbleTMB ................... tmb ..................... tumbleTMBR................. tmbr .................... timberTMD................... tmd ..................... timedTMFL ................. TMFL.................. time of flightTMG................... tmg ..................... timingTMPD ................. tmpd.................... temperedTMPRG ............... tmprg................... temperingTMR ................... tmr...................... timerTMS ................... TMS.................... type mode seriesTMX................... TMX ................... telemeter transmitterTN...................... TN ...................... technical noteTN...................... TN ...................... tracer numberTN...................... tn........................ trainTNALM............... TNALM............... tone and alarmTND ................... tnd ...................... tinnedTNDZR ............... tndzr.................... tenderizerTNG ................... tng ...................... tongueTNG ................... tng ...................... trainingTNL.................... tnl ....................... tunnelTNLDIO .............. TNLDIO .............. tunnel diodeTNR.................... tnr....................... thinnerTNSL .................. tnsl...................... tensileTNSN.................. tnsn ..................... tensionTNT.................... tnt ....................... trinitrotolueneTNTV ................. tntv ..................... tentativeTO...................... TO ...................... tables of organizationTO...................... TO ...................... technical orderTO...................... TO ...................... time openingTO...................... to........................ turnoutTOB.................... tob ...................... tobogganTOBBRZ ............. TOBBRZ.............. tobin bronzeTOE.................... TOE .................... tables of organization and equipmentTOE.................... TOE .................... thread one endTOHM................. tohm.................... terohmmeterTOL.................... tol ....................... toleranceTOPG.................. topg..................... toppingTOR.................... TOR.................... totalizing relayTORM................. torm .................... torquemeterTORNL ............... tornl .................... torsionalTORP.................. torp ..................... torpedoTORSIO .............. torsio ................... torsiographTOS .................... TOS .................... tape-operated systemTOT.................... tot ....................... total



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August, 2003

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TOTLZ................ TOTLZ................ totalizeTP ...................... TP ...................... target practiceTP ...................... TP ...................... test pointTP ...................... TP ...................... tie plateTP ...................... TP ...................... torpedo part of beamTP ...................... TP ...................... true positionTP ...................... TP ...................... true profileTPD.................... TPD.................... terminal protective deviceTPDR.................. TPDR.................. tape driveTPF .................... TPF .................... theoretical point of fogTPG.................... tpg...................... tappingTPHO ................. tpho .................... telephotographTPI ..................... TPI ..................... tape phase inverterTPI ..................... tpi....................... tracks per inchTPL .................... tpl....................... tripleTPLW ................. tplw .................... triple wallTPM ................... TPM ................... telemetry processor moduleTPR.................... tpr ...................... taperTPR.................... tpr ...................... teleprinterTPS .................... TPS .................... task parameter synthesizerTPSN.................. tpsn..................... transpositionTPT .................... tpt....................... tappetTPT .................... TPT .................... target practice with tracerTPTG.................. TPTG.................. tuned-plate tuned-gridTPTOL................ TPTOL ................ true position toleranceTR...................... TR...................... technical reportTR...................... TR...................... time of riseTR...................... TR...................... toothed ringTR...................... TR...................... towel rack or rodTR...................... tr ........................ traceTR...................... TR...................... transmit-receiveTR...................... TR...................... transmitter receiverTR...................... tr ........................ transomTR...................... tr ........................ trussTRAJ .................. traj...................... trajectoryTRANS ............... trans.................... transmittanceTRANS ............... trans.................... transparentTRANSP ............. transp .................. transportationTRANSV............. transv .................. transverseTRAP.................. trap ..................... trapezoidTRAPATT ........... TRAPATT............ trapped-plasma avalanche-triggered transitTRAV ................. trav ..................... traversingTRB ................... trb ...................... trebleTRCR ................. trcr...................... tracerTRD ................... trd ...................... treadTRD ................... TRD.................... turbine reduction driveTRF.................... TRF .................... tuned radio frequencyTRFC.................. trfc...................... trafficTRG ................... trg ...................... trailingTRH ................... TRH.................... truss headTRI..................... tri ....................... triodeTRIB .................. trib...................... tributaryTRIC .................. TRIC................... tracking radar input and correlation



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August, 2003

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TRIG................... trig...................... triggerTRIG................... trig...................... triggeringTRIG................... trig...................... trigonometryTRK.................... trk....................... trackTRK.................... trk....................... truckTRK.................... trk....................... trunkTRKG ................. trkg ..................... trackingTRKWHL ............ TRKWHL............. trick wheelTRLR.................. trlr ...................... trailerTRLY.................. trly...................... trolleyTRMR................. trmr..................... trimmerTRN.................... TRN.................... trade nameTRNBKL ............. trnbkl................... turnbuckleTRND ................. trnd ..................... turnedTRNGL ............... trngl .................... triangleTRNGR ............... TRNGR ............... turning gearTRNLT................ TRNLT................ turning lightTRNPS ................ trnps.................... transposeTRNR ................. trnr...................... trainerTRNSN................ trnsn.................... transitionTRNTBL.............. trntbl ................... turntableTROPO................ tropo ................... troposphereTRP .................... TRP .................... trade patternTRP .................... trp....................... trippedTRP .................... trp....................... trippingTRPL .................. trpl...................... terneplateTRQ.................... trq....................... torqueTRR.................... TRR .................... tactical range recorderTRSBG................ trsbg.................... transcribingTRSBR................ trsbr .................... transcriberTRSCB................ trscb .................... transcribeTRSN.................. trsn ..................... torsionTRST .................. TRST .................. throttle resetTRTD.................. trtd...................... treatedTRTMT ............... trtmt .................... treatmentTRUN ................. trun ..................... trunnionTRVLG ............... trvlg .................... travelingTRVLMT............. TRVLMT ............. travel limitTRVLR................ trvlr..................... travelerTRWA................. TRWA................. trackwayTRX.................... trx....................... triplexTS ...................... TS ...................... taper shankTS ...................... TS ......................Telegraph SystemTS ...................... TS ...................... tensile strengthTS ...................... TS ...................... test specification [number]TS ...................... TS ...................... time switchTS ...................... TS ...................... tool steelTS ...................... TS ...................... tube sheetTSCLT ................ TSCLT ................ transportable satellite communications link terminalTSIOH................. TSIOH................. tube sheet inlet and outlet headTSL .................... tsl ....................... typesetting leadTSN .................... TSN .................... time since newTSO .................... TSO .................... time since overhaul



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August, 2003

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TSPEC ................ TSPEC ................ test specification [no number]TSPOP ................ TSPOP ................ testing and poppingTSQ.................... TSQ.................... time and superquickTSR.................... TSR .................... tile-shingle roofTSTEQ................ TSTEQ ................ test equipmentTSTG.................. tstg ..................... testingTSTR.................. tstr ...................... testerTSTRZ................ tstrz .................... transistorizedTSW ................... TSW ................... temperature switchTSW ................... TSW ................... test switchTT...................... tt ........................ teletypeTT...................... TT ...................... tile thresholdTT...................... TT ...................... timing and telemetryTT...................... TT ...................... total timeTTL.................... TTL .................... transistor transistor logicTTMF ................. TTMF ................. touchtone multifrequencyTTNG ................. ttng ..................... tighteningTTU.................... TTU.................... thrust termination unitTTY.................... tty....................... teletypewriterTUN ................... tun...................... tuningTUNG................. tung .................... tungstenTUR ................... tur ...................... turretTURB ................. TURB ................. turbineTURBOALT......... TURBOALT......... turbo alternatorTURBOGEN ........ TURBOGEN ........ turbine generatorTURN ................. turn..................... turningTUT.................... TUT.................... transistor under testTUT.................... TUT.................... tube under testTV ..................... tv ....................... televisionTV ..................... TV...................... transport vehicleTVG ................... TVG ................... time of variation of gainTVI .................... TVI..................... television interferenceTVM................... TVM................... tachometer voltmeterTVM................... TVM................... transistor voltmeterTW..................... tw....................... tail windTW..................... tw....................... teamworkTW..................... TW ..................... temperature wellTW..................... TW ..................... tempered waterTW..................... TW ..................... tight wrappedTW..................... TW ..................... tile wainscotTW..................... TW ..................... traveling waveTW..................... tw....................... twistedTW..................... tw....................... typewriterTWC................... TWC................... truncated whitworth coarse threadTWF ................... TWF ................... truncated whitworth fine threadTWMBK ............. TWMBK.............. traveling-wave multiple-beam klystronTWPR................. twpr .................... twisted pairTWR................... twr...................... towerTWS ................... TWS ................... truncated whitworth special threadTWSB................. TWSB ................. twin sidebandTWT................... TWT ................... traveling-wave tubeTWX .................. TWX................... teletypewriter exchangeTWY .................. twy ..................... taxiway



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August, 2003

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TXTL.................. txtl ...................... textileTYP .................... typ ...................... typicalTYPL .................. TYPL .................. type-plateTYPSTG.............. typstg .................. typesetting

UUAM................... UAM...................underwater-to-air missileUAR ................... UAR ...................use as requiredUART ................. UART..................universal asynchronous receiver-transmitterUB...................... UB......................underwater batteryUBD ................... UBD ...................utility binary dumpUBL.................... ubl ......................unbleachedUC...................... UC......................unit coolerUCL.................... UCL....................upper control limitUCMT................. UCMT .................unglazed ceramic mosaic tileUF ...................... UF ......................ultrasonic frequencyUFR.................... UFR ....................underfrequency relayUGND................. ugnd....................undergroundUH ..................... uh .......................underhatchUH ..................... UH......................unit heaterUHF.................... UHF....................ultrahigh frequencyUHFDF................ UHFDF................ultra-high frequency direction findingUHPFB................ UHPFB................untreated hard-pressed fiberboardUHT ................... uht ......................underheatUJT..................... UJT.....................unijunction transistorUK ..................... UK......................unit checkUL...................... UL ......................upper and lowerULT.................... ult .......................ultimateUMB................... umb.....................umbilicalUMBC................. UMBC.................umbilical cordUMN................... UMN...................unsatisfactory material noticeUMUS................. UMUS .................unbleached muslinUN ..................... UN......................unifiedUN ..................... un .......................unionUNAUTHD .......... unauthd ................unauthorizedUNB ................... UNB ...................union bonnetUNC ................... UNC ...................Unified coarse threadUNCLP................ unclp ...................unclampUNCOND ............ uncond.................unconditionallyUNCTD ............... unctd ...................uncoatedUND ................... und .....................underUNDC................. undc ....................undercurrentUNDEF ............... undef ...................undefinedUNDETM ............ undetm.................undeterminedUNDF ................. undf ....................underfrequencyUNDLD............... undld ...................underloadUNDV................. undv....................undervoltageUNEF.................. UNEF..................Unified extra fine threadUNF.................... unf ......................unfuzedUNF.................... UNF....................Unified fine threadUNFIN ................ unfin ...................unfinishedUNIF................... unif .....................uniformUNIFCOEF .......... UNIFCOEF...........uniformity coefficient



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August, 2003

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UNIV.................. univ .................... universalUNK................... unk ..................... unknownUNL ................... unl...................... unloadingUNLIM ............... unlim .................. unlimitedUNLKG............... unlkg................... unlockingUNMKD.............. unmkd ................. unmarkedUNMTD .............. unmtd.................. unmountedUNRGLTD .......... unrgltd................. unregulatedUNS ................... UNS.................... Unified special threadUNSUPPR ........... unsuppr................ unsuppressedUNTW ................ untw.................... untwistUO ..................... UO ..................... used onUOL ................... UOL ................... underwater object locatorUOS ................... UOS.................... unless otherwise specifiedUPC ................... UPC.................... universal product codeUPDFT................ updft ................... updraftUPR ................... upr...................... upperUPS.................... UPS .................... uninterruptible power supplyUPWD ................ upwd................... upwardUR ..................... UR ..................... unsatisfactory reportUR ..................... ur ....................... urinalUR ..................... UR ..................... utility roomURT ................... urt ...................... uprightURWC ................ URWC ................ urinal water closetUS...................... us ....................... undersizeUS...................... US...................... Uniform System [lens marking]US...................... US...................... United StatesUSAS.................. USAS.................. USA StandardUSB ................... USB.................... unified S-bandUSB ................... USB.................... upper sidebandUSFU.................. USFU.................. unglazed structural facing unitsUSG ................... USG.................... United States GageUSM................... USM ................... underwater-to-surface missileUSP.................... USP .................... United States PharmacopoeiaUSTZD ............... ustzd ................... unsensitizedUSUB ................. USUB ................. unglazed structural unit baseUTC ................... UTC.................... coordinated universal timeUTEELRAD......... UTEELRAD ......... utilization of enemy electromagnetic radiationUTIL .................. util...................... utilityUTIL .................. util...................... utilizationUTN ................... utn ...................... utensilUTRTD ............... utrtd .................... untreatedUUT ................... UUT ................... unit under testUV ..................... uv....................... ultravioletUVASER............. UVASER ............. ultraviolet amplification by stimulated emission of radiationUVD................... UVD ................... undervoltage deviceUVFLT ............... UVFLT................ ultraviolet floodlightUW .................... UW..................... used withUWT .................. UWT................... unit weightUWTM................ UWTM................ underwater teamUWTR ................ uwtr .................... underwater



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August, 2003

Drawing Text Term


VV........................ v.........................valveV........................ v.........................vertical (comb form)V........................ v.........................violetV........................ V ........................voltVAC ................... vac......................vacantVAC ................... vac......................vacuumVADJR................ VADJR................voltage-adjusting rheostatVAL ................... val ......................valleyVAL ................... val ......................valueVAM................... vam.....................voltammeterVAPPRF.............. vapprf ..................vaporproofVAR ................... var ......................variableVAR ................... var ......................varianceVAR ................... var ......................variationVAR ................... var ......................variousVARHM .............. VARHM ..............var-hour meterVARISTOR .......... VARISTOR ..........variable resistorVARITRAN ......... varitran ................variable-voltage transformerVARM ................ varm....................varmeterVARN................. varn.....................varnishVARR ................. VARR .................visual aural radio rangeVB...................... VB......................valve boxVC...................... VC......................varnished cambric [insul]VC...................... VC......................vitrified clayVC...................... VC......................voice coilVC...................... VC......................volume of compartmentVCB ................... VCB....................vertical location of the center of buoyancyVCE.................... VCE....................vertical centrifugalVCG ................... VCG ...................vertical location of the center of gravityVCL.................... VCL....................vertical center lineVCO ................... VCO ...................voltage-controlled oscillatorVCOP ................. VCOP..................variable-control oil pressureVCT.................... VCT....................vitrified clay tileVCT.................... VCT....................voltage control transferVD ..................... vd .......................vandykeVD ..................... VD......................vault doorVD ..................... VD......................voltage dropVDEL ................. VDEL..................variable deliveryVDET ................. VDET..................voltage detectorVDL ................... VDL....................ventilating deadlightVDT ................... VDT....................video display terminalVE...................... VE ......................value engineeringVE...................... VE ......................ventilating equipmentVEG ................... veg......................vegetableVEH ................... veh......................vehicleVEL.................... vel ......................vellumVEL.................... vel ......................velocityVENT ................. vent.....................ventilateVENT ................. vent.....................ventilatorVERB ................. verb.....................verbatimVERIF................. verif ....................verificationVERN ................. vern.....................vernier



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Drawing Text Term


VERS.................. vers..................... versed sineVERST................ verst.................... versatileVERT ................. vert ..................... verticalVEST.................. vest..................... vestibuleVF...................... VF...................... variable frequencyVF...................... VF...................... voice frequencyVFCTT................ VFCTT................ voice frequency carrier teletypeVFLPT................ VFLPT ................ variable floating pointVFO ................... VFO.................... variable-frequency oscillatorVFR ................... VFR.................... visual flight rulesVFREQCLK......... VFREQCLK ......... variable-frequency clockVFTLG ............... VFTLG................ voice frequency telegraphVGA................... VGA ................... variable gain amplifierVGS ................... VGS.................... visual glide slopeVH ..................... VH ..................... vent holeVH ..................... VH ..................... Vickers hardnessVHF ................... VHF.................... very high frequencyVHFDF ............... VHFDF ............... very high frequency direction findingVI ...................... VI....................... viscosity indexVI ...................... VI....................... volume indicatorVIB .................... vib ...................... vibrateVIB .................... vib ...................... vibrationVICD.................. VICD .................. vendor item control drawingVID .................... vid ...................... video [adjective]VIDAMP ............. VIDAMP ............. video amplifierVIDF .................. VIDF .................. video frequencyVIL .................... VIL..................... villageVIMP.................. VIMP.................. vertical impulseVIMVAR............. VIMVAR............. vacuum induction melt-vacuum arc remeltVINT .................. VINT .................. video integrationVIO .................... vio ...................... violetVIS..................... vis ...................... visualVISC .................. visc..................... viscosityVISID ................. VISID ................. visual identificationVISMR................ vismr................... viscometerVIT .................... vit....................... vitreousVIZ .................... viz ...................... namelyVL ..................... VL...................... vertical ladderVLA ................... VLA ................... very low altitudeVLC ................... VLC.................... vital load centerVLF.................... VLF.................... very low frequencyVLMTRC ............ VLMTRC............. volumetricVLR ................... VLR.................... very long rangeVLSI................... VLSI................... very large-scale integrationVLT.................... VLT.................... voluteVM..................... VM..................... velocity modulationVM..................... VM..................... volt per meterVM..................... vm...................... voltmeterVMIL.................. VMIL.................. volt per milVNXL................. VNXL ................. vane axialVO ..................... vo....................... voiceVODAT............... VODAT............... voice-operated device for automatic transmissionVOL ................... vol ...................... volume



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Drawing Text Term


VOM................... VOM...................volt-ohm milliammeterVOR ................... VOR ...................very high frequency omnidirectional radioVORLOC............. VORLOC .............very high frequency omnirange localizerVOX ................... VOX ...................voice-operated transmitter keyerVP ...................... VP ......................vent pipeVPR.................... vpr ......................vaporizeVR...................... VR......................voltage regulatorVRCTR ............... VRCTR................varactorVRFY ................. vrfy .....................verifyVRIS................... vris .....................varistorVRL.................... VRL....................vertical reference lineVRLY ................. VRLY..................voltage relayVRTY ................. vrty .....................varietyVRYG................. vryg ....................varyingVS...................... VS ......................vapor sealVS ...................... VS ......................vent stackVS...................... vs .......................versusVS ...................... VS ......................voltmeter switchVSB.................... VSB ....................vestigial sidebandVSBL.................. vsbl .....................visibleVSM ................... VSM ...................vestigial-sideband modulationVST .................... VST ....................valve seatVSTM ................. VSTM .................valve stemVSTOL................ VSTOL................vertical and short takeoff and landingVSWR................. VSWR .................voltage standing-wave ratioVT...................... VT ......................vacuum tubeVT...................... vt........................vaportightVT...................... VT ......................variable time (fuse)VT...................... VT ......................voice tubeVTL.................... VTL ....................variable-threshold logicVTM................... VTM ...................voltage-tunable magnetronVTOL ................. VTOL..................vertical takeoff and landingVTR.................... VTR....................vertical radialVTR.................... VTR....................video-tape recorderVTVM................. VTVM.................vacuum-tube voltmeterVTX ................... vtx ......................vertexVU ..................... VU......................volume unitVULC ................. VULC..................vulcanizeVVC ................... vvc......................voltage-variable capacitorVVSS.................. VVSS ..................vertical volute spring suspension

WW ....................... w ........................wasteW ....................... W .......................wattW ....................... W .......................westW ....................... w ........................whiteW ....................... w ........................wire (comb form)W ....................... W .......................with (comb form)WA..................... wa.......................wainscotWA..................... WA.....................wire assemblyWA..................... WA.....................workshop assembly [torpedo]WADS................. WADS.................wide-area data serviceWAF................... WAF ...................width across flats



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Drawing Text Term


WAF................... WAF................... wiring around frameWAG .................. wag..................... wagonWAN .................. wan..................... waniganWARHD.............. warhd .................. warheadWARR ................ warr .................... warrantyWATS................. WATS................. wide-area telecommunications serviceWATW ............... WATW................ wood awning-type windowWB..................... WB..................... wagon boxWB..................... WB..................... wash bucketWB..................... WB..................... wet bulbWB..................... WB..................... whale boatWB..................... wb ...................... wheelbarrowWB..................... wb ...................... wheelbaseWB..................... WB..................... wide bandWB..................... WB..................... wood baseWB..................... wb ...................... workbenchWBD .................. WBD .................. wire-boundWBF................... WBF ................... wood block floorWBG .................. wbg .................... webbingWBL................... WBL................... wood blockingWBO .................. WBO .................. with blowoutWBR .................. WBR................... word buffer registerWBRS................. WBRS................. wrought brassWBX .................. WBX .................. wooden box [ammo]WC..................... WC..................... water closetWC..................... WC..................... weapon carrierWC..................... WC..................... working circleWCHR ................ WCHR ................ water chillerWCLD ................ WCLD................. water-cooledWCM.................. WCM.................. word combiner and multiplexerWCP................... WCP ................... wing chord planeWCR .................. WCR................... water coolerWCS................... WCS ................... writable control storeWCTG ................ wctg.................... woodcuttingWCW.................. WCW.................. wood casement windowWD .................... WD..................... whole depthWD .................... wd ...................... widthWD .................... WD..................... window dimensionWD .................... WD..................... withdrawnWD .................... WD..................... wood doorWDBOR.............. WDBOR .............. wood boringWDF................... WDF................... wood door and frameWDF................... wdf ..................... woodruffWDG .................. wdg .................... windingWDIR ................. WDIR ................. wind directionWDM.................. WDM.................. watt demand meterWDO .................. wdo .................... windowWDP................... WDP................... wood panelWEA .................. wea..................... weatherWEAT ................ weat .................... weathertightWESP ................. WESP ................. with equipment and spare partsWF..................... WF ..................... wash fountainWFG................... WFG................... water fog



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August, 2003

Drawing Text Term


WFR ................... wfr......................waferWFS ................... WFS....................wood furring stripsWG..................... wg ......................waveguideWG..................... wg ......................wedgeWG..................... WG.....................window guardWG..................... WG.....................wire gageWGL................... WGL...................wire glassWH..................... WH.....................wall hydrantWH..................... WH.....................water heaterWH..................... Wh......................watthourWH..................... wh ......................wheelhouseWHC................... WHC...................watthour meter with contact deviceWHDM................ WHDM................watthour demand meterWHL................... WHL...................watthour meter with loss compensatorWHL................... whl .....................wheelWHM.................. WHM ..................watthour meterWHS................... WHS ...................white scaleWHSE................. whse....................warehouseWHT................... WHT...................watthour demand meter, thermal typeWHT................... wht .....................whiteWI ...................... WI ......................wrought ironWIL .................... WIL ....................white indicating lampWJ...................... WJ ......................water jacketWJ...................... WJ ......................wood jalousieWK..................... wk ......................weekWKLT................. WKLT .................wake lightWKS................... wks .....................workshopWL ..................... wl .......................waterlineWL ..................... wl .......................wavelengthWL ..................... WL .....................white lightWL ..................... WL .....................wind loadWL ..................... WL .....................wire listWL ..................... WL .....................work lineWLB................... WLB ...................wallboardWLC................... wlc......................wildcatWLD................... wld .....................weldedWLDR................. wldr ....................welderWLDS................. wlds ....................weldlessWLSL ................. WLSL..................walsealWM .................... wm .....................warmingWM .................... WM ....................water meterWM .................... wm .....................wattmeterWM .................... WM ....................wire meshWMGA................ WMGA................Washburn and Moen GageWMGR................ WMGR................worm gearWMSFT............... wmsft ..................wormshaftWMWHL............. wmwhl.................wormwheelWN..................... wn ......................winchWND .................. wnd.....................woundWNDLS............... wndls...................windlassWNDR ................ wndr....................winderWO..................... WO.....................wipe outWO..................... WO.....................without



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Drawing Text Term


WOBO................ WOBO ................ without blowoutWOESP............... WOESP ............... without equipment and spareWP..................... WP ..................... waste pipeWP..................... WP ..................... water pumpWP..................... wp ...................... weatherproof [insul]WP..................... WP ..................... wet processWP..................... WP ..................... white phosphorusWP..................... WP ..................... wood patternWP..................... WP ..................... word processingWP..................... WP ..................... working pointWPFC ................. WPFC ................. waterproof fan-cooledWPG................... wpg .................... waterproofingWPG................... wpg .................... wipingWPJ.................... WPJ .................... weakened plane jointWPN................... wpn .................... weaponWPR................... WPR ................... working pressureWPS ................... WPS ................... waterproof shroudWR..................... WR..................... wall receptacleWR..................... wr....................... wardroomWR..................... wr....................... washroomWR..................... WR..................... weather-resistantWR..................... WR..................... white roomWR..................... WR..................... wire ropeWR..................... wr....................... wrenchWR..................... wr....................... writerWRB .................. wrb ..................... wardrobeWRDIR ............... WRDIR ............... wrong directionWRG .................. wrg ..................... wearingWRG .................. wrg ..................... wiringWRGR ................ wrgr .................... wringerWRK .................. wrk ..................... wreckerWRK .................. wrk ..................... wreckingWRL................... WRL................... wing reference lineWRN .................. wrn ..................... warningWRPG ................ wrpg ................... warpingWRT................... WRT................... water round torpedoWRT................... wrt...................... wroughtWS..................... WS ..................... waste stackWS..................... WS ..................... water surfaceWS..................... WS ..................... Weapon SystemWS..................... WS ..................... weather strippingWS..................... WS ..................... wetted surfaceWS..................... WS ..................... wrought steelWS..................... ws ...................... wire scheduleWSHG ................ wshg ................... washingWSHLD .............. wshld .................. windshieldWSHR ................ wshr.................... washerWSL ................... WSL ................... weather sealWSP ................... WSP ................... working steam pressureWSR................... WSR ................... wood-shingle roofWSTL ................. wstl..................... whistleWSTPN............... WSTPN ............... wrist pinWT..................... wt....................... weight



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August, 2003

Drawing Text Term


WT ..................... WT .....................wood thresholdWTCC................. WTCC .................water turbine, closed-coupledWTD................... WTD...................water turbine, directWTG................... wtg .....................waitingWTG................... wtg .....................weightingWTHPRF ............. wthprf..................weatherproofWTR................... wtr ......................waterWTRPRF ............. wtrprf ..................waterproofWTRTT ............... wtrtt ....................watertightWTRZ................. wtrz.....................winterizeWTURB .............. WTURB...............water turbineWU..................... WU.....................window unitWU..................... WU.....................workshop unit [torpedo]WV..................... WV.....................wall ventWV..................... WV.....................working voltageWW .................... ww......................waterwallWW .................... ww......................winding to windingWW .................... ww......................wirewayWW .................... WW ....................wire-woundWWHL................ wwhl ...................waterwheel

XX........................ X ........................experimental testing [aircraft]XARM ................ xarm....................crossarmXBAR ................. xbar.....................crossbarXBRA ................. xbra.....................cross bracingXBT.................... xbt ......................crossbar tandemXCO ................... xco......................cross-connectionXCONN............... xconn ..................cross-connectionXCVR ................. xcvr..................... transceiverXCY ................... xcy......................cross-countryXDCR ................. xdcr..................... transducerXFMR................. xfmr .................... transformerXFR.................... xfr....................... transferXHAIR................ xhair....................crosshairXHVY................. XHVY .................extra heavyXING .................. xing.....................crossingXLTR.................. xltr...................... translatorXLWB................. XLWB.................extra-long wheel baseXMSN................. xmsn ................... transmissionXMT................... xmt ..................... transmitXMTD................. xmtd.................... transmittedXMTG................. xmtg.................... transmittingXMTL................. xmtl .................... transmittalXMTR................. xmtr .................... transmitterXPL .................... xpl ......................explosiveXPLD.................. XPLD..................explosive deviceXPT .................... xpt ......................cross-pointXSECT................ xsect....................cross sectionXSTR.................. XSTR ..................extra strongXSTR.................. xstr ..................... transistorXTAL ................. xtal .....................crystalXTLO ................. xtlo .....................crystal oscillator



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August, 2003

Drawing Text Term


XWAVE.............. XWAVE .............. extraordinary waveXXSTR ............... xxstr.................... double extra strong

YY ....................... Y........................ transitional testing [aircraft]Y ....................... y ........................ yellowYD ..................... yd....................... yardYEL.................... yel ...................... yellowYIL .................... YIL..................... yellow indicating lampYLT.................... YLT.................... yellow lightYP...................... YP...................... yield pointYR ..................... yr ....................... yearYS...................... YS...................... yield strengthYVC ................... YVC ................... yellow varnished cambric [insul]

ZZA ..................... ZA...................... zero adjustedZTC.................... ZTC.................... zero temperature coefficient



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August, 2003


3.0 Partial List of Engineering Societies and Industrial Associations

AAA ..................... Aluminum Association, Inc.AALA ................. American Association for Laboratory AccreditationAAMA ................ American Architectural Manufacturers AssociationAAMA ................ American Automobile Manufacturers AssociationAAMI ................. Association for the Advancement of Medical InstrumentationAAN ................... American Association of NurserymenAAR ................... Association of American RailroadsAASM................. Association of American Steel ManufacturersABMA ................ American Boiler Manufacturers AssociationABMA ................ American Bearing Manufacturers AssociationABS.................... American Bureau of ShippingACGIH................ American Conference of Governmental Industrial HygienistsACI..................... American Concrete Institute InternationalACS.................... American Chemical SocietyADA ................... American Dental AssociationADPA ................. American Defense Preparedness AssociationAEC.................... American Engineering CouncilAESF .................. American Electroplaters and Surface Finishers SocietyAFA.................... American Foundrymen's AssociationAGA ................... American Gas AssociationAGA ................... Abrasive Grain AssociationAGMA ................ American Gear Manufacturers AssociationAIA .................... American Institute of ArchitectsAIA .................... Aerospace Industries Association of AmericaAIAA .................. American Institute of Aeronautics and AstronauticsAICHE ................ American Institute of Chemical EngineersAIIM................... Association for Information and Image ManagementAIME.................. American Institute of Mining, Metallurgical and Petroleum EngineersAISC................... American Institute of Steel ConstructionAISE................... Association of Iron and Steel EngineersAISI.................... American Iron and Steel InstituteAITC................... American Institute of Timber ConstructionALCM................. American Leather Chemists AssociationAMCA ................ Air Movement and Control AssociationAMT................... Association for Manufacturing TechnologyANMC ................ American National Metric CouncilANSI................... American National Standards InstituteAOCS ................. American Oil Chemists' SocietyAPI..................... American Petroleum InstituteAPTA.................. American Public Transit AssociationARBBA ............... American Railway Bridge and Building AssociationAREA ................. American Railway Engineering AssociationARI..................... Air Conditioning and Refrigeration InstituteASA.................... Acoustical Society of AmericaASAE.................. American Society of Agricultural EngineersASCE.................. American Society of Civil EngineersASEA.................. American Society of Engineers and ArchitectsASFA.................. American Steel Foundrymen's AssociationASHRAE ............. American Society of Heating, Refrigerating and Air-Conditioning EngineersASLE .................. American Society of Lubrication EngineersASM ................... American Society for Metals (ASM International)



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August, 2003


ASME................. The American Society of Mechanical Engineers (ASME International)ASPRS................ American Society for Photogrammetry and Remote SensingASQ ................... American Society for QualityASSE.................. American Society of Safety EngineersASSE.................. American Society of Sanitary EngineeringASTM................. American Society for Testing and MaterialsAWI ................... Architectural Woodwork InstituteAWPI.................. American Wood Preservers InstituteAWS................... American Welding SocietyAWWA ............... American Water Works Association

BBHMA ................ Builders Hardware Manufacturers AssociationBOCA................. Building Officials and Code Administrators International

CCAGI.................. Compressed Air and Gas InstituteCGSM................. Canadian General Standards BoardCIMA ................. Construction Industry Manufacturers AssociationCISPI .................. Cast Iron Soil Pipe InstituteCLA ................... Canadian Lumbermen's AssociationCSA ................... Canadian Standards AssociationCSI..................... Construction Specification Institute

DDFISA ................ Dairy and Food Industries Supply AssociationDWMI ................ Diamond Wheel Manufacturers Institute

EECS.................... Electrochemical SocietyEEI..................... Edison Electric InstituteEIA .................... Electronic Industries Alliance

FFCI..................... Facing Tile Institute

GGAMA................ Gas Appliance Manufacturers AssociationGWI ................... Grinding Wheel Institute

HHl....................... Hydraulic Institute

IIAPMO ............... International Association of Plumbing and Mechanical OfficialsICEA .................. Insulated Cable Engineers AssociationIEC..................... International Electrotechnical CommissionIEEE................... Institute of Electrical and Electronics EngineersIESNA ................ Illuminating Engineering Society of North AmericaIPC..................... Institute for Interconnecting and Packaging Electronic CircuitsISA..................... Instrument Society of AmericaISO..................... International Organization for StandardizationITE..................... Institute of Transportation Engineers



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August, 2003


JJEDEC ................ Joint Electron Device Engineering Council

MMBMA................ Material Building Manufacturers AssociationMHI.................... Material Handling IndustryMMA .................. Monorail Manufacturers AssociationMMPA ................ Magnetic Materials Producers AssociationMPIF................... Metal Powder Industries FederationMSS.................... Manufacturers Standardization Society of the Valve and Fittings Industry

NNACA................. National Advisory Committee for AeronauticsNAM................... National Association of ManufacturersNAPM................. National Association of Photographic ManufacturersNCPA ................. National Cottonseed Products AssociationNEMA................. National Electrical Manufacturers AssociationNFPA.................. National Fire Protection AssociationNFPA.................. National Fluid Power AssociationNHA ................... National Housing AgencyNHLA ................. National Hardwood Lumber AssociationNIOP................... National Institute of Oilseed ProductsNLMA................. National Lumber Manufacturers AssociationNMTBA .............. National Machine Tool Builders' AssociationNPRA ................. National Petroleum Refiners AssociationNSA.................... National Stone AssociationNSPE .................. National Society of Professional EngineersNWWDA ............. National Wood Window and Door Association

PPMAA................. Petroleum Marketers Association of America

RRMA................... Rubber Manufacturers Association

SSACMA............... Suppliers of Advanced Composite Materials AssociationSAE .................... Society of Automotive Engineers (SAE International)SAM ................... Society for the Advancement of ManagementSDI..................... Steel Door InstituteSES .................... Standards Engineering SocietySFPE................... Society of Fire Protection EngineersSME ................... Society of Manufacturing EngineersSMPTE................ Society of Motion Picture and Television EngineersSNAME............... Society of Naval Architects and Marine EngineersSPIB ................... Southern Pine Inspection BureauSSFI.................... Scaffolding. Shoring and Foaming InstituteSSPC................... Steel Structures Painting CouncilSWI .................... Steel Window Institute

TTCA.................... Tire Council of AmericaTEMA................. Tubular Exchanger Manufacturers AssociationTIA..................... Telecommunications Industry Association



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August, 2003


TRA ................... Tire and Rim AssociationTTMA................. Truck Trailer Manufacturers Association

UUL ..................... Underwriters Laboratories

VVRCI .................. Variable Resistive Components Institute

WWQA .................. Water Quality AssociationWWPA................ Western Wood Products Association

Standard Data Elements for Units of MeasureSection K13.2

Page 1November 12, 1971

DRAFTING MANUAL

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1.0 GENERAL

The General Electric Company Information Standard, GEISPUB 12.00, describes standard data elements and their codfor units of measure The standard is based on the Air TransAssociation Specification No. 200, which uses a two-characcode to identify units of measure beyond those normallyencountered in engineering documentation work, i.e., bag, cpail, etc. The purpose is to provide uniform data interchangecapability within the Company.

2.0 USE OF UNITS OF MEASURE CODES ON ENGINEERING DOCUMENTATION

Since engineering documentation provides the basic informtion for accumulating quantities of materials used within aproduct, it is desirable that the codes and abbreviations useunits of measure be the same. Since in this situation it is nofeasible, the standard abbreviations for units of measure asdescribed in Section K13.1 shall continue to be used as in tpast. When Units of Measure Codes are also desired onengineering drawings, lists, etc., they may be shown elsewhon the document. For example, on a parts list, the code canshown as an additional line entry at the bottom of the list.

Example -

Units of Measure Code ST = SETRL = ROLL

In general, such information should only be shown on the plist, wiring list, etc. If the list is integral with the drawing, thenthe line entry should be made within the list on the drawing.

3.0 UNITS OF MEASURE CODE

The Units of Measure Code is comprised of the following eicategories:

• Quantity • Area • Length • Volume• Container • Weight • Liquid • Dry

The total code listing is specified below. It should be notedthat codes with an asterick (*) conflict with abbreviations inSection K13.1. All others either agree with or are not includein Section K13.1.

DATA CODES

Quantity Unit of MeasureData Code Data ItemEA EachPR PairST SetTE Ten

*DZ DozenQR Quire

*HU HundredGR GrossRM ReamTH Thousand

GENIUM PUB

Container Unit of MeasureData Code Data ItemBG BagBA Bale

*BL Barrel, Drum or KegJR Bottle or JarBX Box

*PK Bundle or PackageCA Can, Pail or TinCR CardCB Carboy

*CN CartonCS CaseRL Coil, Cone, Roll or spoolRL Cone, Coil, Roll or Spool

*CL CylinderBL Drum, Barrel or KegJR Jar or BottleBL Keg, Barrel or DrumKT KitLT LotCA Pail, Can or Tin

*PK Package or BundlePD PadRL Roll, Spool, Coil or ConeSH SheetSN Skein

*RL Spool, Coil, Cone or RollSK StickCA Tin, Pail or Can

*TU Tube

Length Unit of MeasureData Code Data ItemCM Centimeter

*ME MeterIN InchFT FootYD YardCT 100 FeetMT 1000 Feet

Volume Unit of MeasureData Code Data Itemcc Cubic CentimeterDC Cubic Decimeter

*CF Cubic Foot *CI Cubic Inch *MC Cubic Meter *CY Cubic Yard *BF Board Foot

MF Thousand-Board Feet

LISHING

Standard Data Elements for Units of MeasureSection K13.2Page 2November 12, 1971

DRAFTING MANUAL

Area Unit of MeasureData Code Data Item

*SC Square Centimeter *SF Square Foot *SI Square Inch *SM Square Meter

SY Square Yard

Weight Unit of MeasureData Code Data Item

*GM GramCW Hundred PoundKG KilogramOZ OunceLB PoundTN TonTO Troy Ounce

Liquid Unit of Measure Data Code Data Item *GL Gallon

HP Half Pint *LI Liter

OZ OuncePT PintQT Quart

Dry Unit of MeasureData Code Data ItemBU Bushe 1HP Half PintPE PeckPT PintQT Quart

GENIUM PUBLISHING

Section K13.3Page 1

November 28, 1983

DRAFTING MANUALLetter Symbols For Units

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1.0 SCOPE

This standard establishes the symbols for units in all apptions in the fields of electrical science and electrical engining, including use of text and equations, in graphs and diagrams, and artworks for both commercial and governmen

2.0 PURPOSE

The purpose of this standard is to present the intent of ANIEEE STD 260-1978. The current recommendations empthe symbolic character of these designations and rigidlyprescribe the manner in which they shall be treated. Theconcept of the unit symbol is adopted in this standard.

3.0 REFERENCE DOCUMENTS

ANSI/IEEE STD 260-1978, General Electric Drafting ManSection K16 - SI Metric, Section K13.1 - Abbreviations.

4.0 REQUIREMENTS

“Letter Symbol” as a technical term does not have the sameaning as either “name” or “abbreviation.” An abbreviatis a letter or a combination of letters by which conventionrepresents a word in a particular language; therefore anabbreviation may be different in a different language. Asymbol represents a quantity or a unit and is, therefore,independent of language.

4.1 Letter Symbols - Letter symbols include symbols forphysical quantities and symbols for the units in which thequantities are measured (unit symbols).

A quantity symbol is, in general, a single letter (Example electrical current) specified as to general form of type, anmodified when appropriate by one or more subscripts orsuperscripts. In a given work the same letter symbol shouappear throughout for the same physical quantity, regardthe units employed or of special values assigned.

A unit symbol is a letter or a group of letters (Example mmmillimeter), or a special sign, that may be used in place oname of the unit.

4.1 Alphabets - Letter symbols are restricted to the Englisand Greek alphabets. Greek letters that may be confusedEnglish letters are avoided.

4.2 Quantity Symbols - Quantity symbols may be used inmathematical expressions in any way consistent with goomathematical usage. The product of two quantities a, b, iindicated by writing ab. The quotient may be indicated bywriting

ab

, a / b, or ab−1

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If more than one slash (/) is used in any algebraic term,parentheses must be inserted to remove any ambiguity. Thefore, one may write (a/b)/c, or a/(b/c), but not a/b/c.

Subscripts and superscripts are widely used with quantitysymbols. Several subscripts or superscripts, sometimes seprated by commas, may be attached to a single letter. Bewarfar as local clarity permits, subscripts and superscripts shounot be attached to other subscripts and superscripts. A symthat has been modified by a superscript should be enclosedparentheses before an exponent is attached.

Conflicts that occur because different quantities are assigneidentical symbols in the same or different standard lists shobe resolved in one of the following ways:

1. By use of a reserve symbol (alternate symbol) if one islisted.

2. By use of a subscript selected by the author for one ormore of the conflicting requirements.

3. By use of upper-case letters as variants for lower-caseletters and vice versa, but only if no ambiguity results.

4.3 Unit Symbols - The distinction between upper- and lowecase letters shall be followed. The form of unit symbols shathe same for both singular and plural, and not followed by aperiod except at the end of a sentence.

In the complete expression for a quantity, a space should bebetween the numerical value and the unit symbol. For exam35 mm, not 35mm, and 2.371 m, not 2.371m. When thequantity is used in an adjectival sense, a hyphen is often uslieu of a space between the number and the unit name orbetween the number and the symbol (except when the firstcharacter of the symbol is not a letter, as in ˚C).

Examples:

A 3-meter pole .. The length is 3 meters.

A 35-mm film .. The width is 35 mm.

Exception:

No space is left between the numerical value and thesymbols for degree, minute, and second of plane angle.

When a compound unit is formed by multiplication of two ormore other units, its symbol consists of the symbols for theseparate units joined by a raised dot (for example, N•m fornewton meter). The dot may be omitted in the case of familcompounds such as watt-hour (symbol Wh) if no confusionwould result. It may also be omitted where symbols areseparated by an exponent as in N•m2kg-2. Hyphens shall not beused in symbols for compound units. Positive and negativeexponents may be used with the symbols for units.

PUBLISHING

Section K13.3Page 2November 28, 1983


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When a compound unit is formed by division of one unit byanother, its symbol is constructed in one of the followingforms:

In simple cases use of the slash is preferred, but in no casemore than one slash, or a slash followed by a product, be uin the same expression unless parentheses are inserted toambiguity. For example:

J/(mol•K) or J•mol-1•K-1 or(J/mol)/K but not J/mol/K or J/mol•K.

In complicated cases negative powers should be used. Thenotation for products and quotients of unit symbols is inten-tionally made more explicit than that given in 4.2 for quantitsymbols because some unit symbols consist of more than letter.

Letter symbols and mathematical notations shall not be mixwith unit names in the same expression. For example, usejoules per kilogram of J/kg. Do not use joules/ kilogram orjoules/kg, or J/kilogram.

4.4 Use - The use of unit symbols in place of full names of tunits is frequently desirable where space is restricted. Theipresupposes that the reader will find them intelligible. If theis any doubt that the reader will understand a symbol, the nof the unit should be written in full. When an unfamiliar unitsymbol is first used in text, it should be followed by its namparentheses or the name should be given with the symbol parentheses; the symbol may be used alone thereafter. Extory notes or keys should be included where appropriate ondrawings and in tabular matter.

4.5 Lists of symbols- Symbols for units for general use arelisted alphabetically by name of unit in Table 1.

Obsolescent units, such as apothecaries’ weights, and unitused almost exclusively in narrow fields of commerce, suchthe bushel and hundredweight, have been omitted. Deprecsymbols are listed in Table 2.

Attachment of letters to a unit symbol as a means of givinginformation about the quantity under consideration is incorrThus MWe for “megawatts electrical (power),” Vac for “voltac,” and KJt for “kilojoules thermal (energy)” are not acceptable. For this reason, no attempt should be made to constrequivalents of the abbreviations “psia” and “psig,” so oftenused to distinguish between absolute and gage pressure.

If the context leaves any doubt as to which is meant, the w“pressure” must be qualified appropriately. For example:

“.. at a gage pressure of 13kPa”“.. at an absolute pressure of 13 kPa”

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When space limitations make it necessary to juxtapose infomation about the quantity being measured with the unit namor unit symbol, such information must be separated from theunit symbol by a space, or by a comma followed with a spacor the equivalent. Thus the following examples are approprifor use on nameplates, gage scale plates, table headings, glabels, etc:

rating - 115 V ackPa, gagekPa, (abs)

On the other hand, letters may be attached to a unit symbolwhere needed to properly identify the unit involved. In suchsymbols as in Hg, mmHg, and ftH20, the suffixes are needed tidentify the units, which are units of pressure, not of length.Similarly, it is proper to write BtuIT, calTH, galUS, etc, todistinguish from the related but different units Btu60, cal125galUK, etc.

The distinction between upper-case and lower-case lettersshown in the list is part of the standardization of the symbolfollowing international rules. Changing the letter case changthe symbol and violates this standard. There are situations which the standard symbols cannot be used, for example, wthe printing equipment has no provision for Greek letters, orfor lower-case letters. These situations are discussed in 4.6

4.6 Symbols to Be Used with Limited Character Sets - Thisportion of the standard is to be applied when only a limited sof characters is available to express unit symbols, and whenunit symbols are intended for interpretation by human beingSuch applications often arise when text is transmitted byteleprinter, or when information is prepared for computerdisplay. The limited-character-set symbols shall not be usedwhen the available character set would permit the use of thegeneral-use standard symbols. The fact that the character slimited leads to a few cases of ambiguity, but in almost allcases this ambiguity is theoretical rather than real, whichmeans that no confusion in human interpretation can reasonably be expected. In the very few cases where only a limitedcharacter set is available and the application of the symbolsherein would lead to a possible real confusion, the unit namshall be written in full.

Various types of character-set limitations are listed below,together with the rules to be followed.

4.6.1 Character Set Lacks Greek Letters:

(a) For µ substitute u.

Example: µA microampere uA.

Remark: In typewritten text or masters prepared forphotoreproduction, a “tail” should be added to the u byhand.

BLISHING

Section K13.3Page 3

November 28, 1983


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(b) For Ω substitute Ohm.

Example: The symbol for kilohm becomes KOhm.

Remark: Note the use of the uppercase O, where avail-able, in the substitute symbol Ohm, following the rules 4.3.

4.6.2 Character Set Lacks Superscript Symbols:

(a) For ˚C, ˚F, and ˚R substitute, C, F, and R.

Example: a temperature of 12 degrees Celsius becomesC.

(b) For units of plane angle substitute as follows:

degree ˚ use degminute ' use minsecond " use sec

4.6.3 Character Set Lacks Superscript Numerals – Usenumerals on the line. Do not use any space between theprincipal unit symbol and its exponent, whether positive ornegative.

Example: The symbol for square millimeter becomes mmThe symbol for watt per square meter becomes W/m2 oW•m-2.

Where it is possible to raise ordinary numericals to a superscript position, as it is in manually typewritten work, thisshould be done. For example, W•m-2.

4.6.4 Character Set Lacks Raised Dots – Use a dot on the line(period) to indicate multiplication of units.

Example: N.m for newton meter.

Where the platen can be rolled, as in manual typing, the doshould be raised.

4.6.5 Character Set Limited To A Single Case – Use symbolslisted in Table 1, in the single available case (whether uppecase or lower case), without change. The examples below given in upper case only for simplicity.

Example: Use M for mega and M for mili.

Very few units are used with both these prefixes, and in thefew cases where both are possible, such as MW for milliwaor megawatt, the context almost always makes the intentioclear. Where the context does not eliminate all reasonablechance of ambiguity, the unit names shall be in full.

Example: Use P for pico and P for peta.

Example: Use H for henry and H for hour.

Example: Use S for second (time) and S for siemens.

GENIUM

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Example: Use T for tesla and T for metric ton. Confusionunlikely because of context and because the tesla is sucvery large unit of magnetic flux density that it almost alwappears with submultiple prefixes. If necessary to avoidpossible ambiguity, use “metric ton” in full.

4.6.6 Examples of Symbols For Limited Character – Table 3shows examples of how the foregoing principles may beapplied.

The column labeled “Form I” applies for data systems that the capability to use upper-case and lower-case letters, digand at least the graphic characters apostrophe ('), quotatiomark ("), hyphen (-), period (.), and solidus (/), but which donot have the capability to use the Greek letters or place thedegree sign (˚), letters, digits, and signs in superscript posi

The column labeled “Form II” applies for data systems thatfurther limited in that they have only one case (either upperlower), and lack the apostrophe and quotation mark.

PUBLISHING



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TABLE 1SYMBOLS FOR UNITS FOR GENERAL USE

UNIT SYMBOL NOTES

ampere A SI unit of electric current

ampere (turn) A SI unit of magnetomotive force

ampere-hour Ah Also A•h

ampere per meter A/m SI unit of magnetic field strength

atomic mass unit (unified) u The (unified) atomic mass unit is defined as one twelfth omass of an atom of the 12C nuclide. Use of the old atomicmass (amu), defined by reference to oxygen, is deprecat

attoampere aAbarn b 1 b = 10-28 m2

barrel bbl 1 bbl = 42 galUS = 158.99 L

barrel per day bbl/d This is the standard barrel used for petroleum, etc. A diffestandard barrel is used for fruits, vegetables, and drycommodities.

baud Bd In telecommunications, a unit of signaling speed equal to element per second. The signaling speed in bauds is equto the reciprocal of the signal element length in seconds.

bel B See Appendix B for guidance concerning notation.

becquerel Bq SI unit of activity of a radionuclide.

billion electronvolts GeV The name gigaelectronvolt is preferred for this unit.

bit b In information theory the bit is a unit of information contentequal to the information content of a message the "apriorprobability of which is one half.

In computer science the bit is a unit of storage capacity. Thcapacity, in bits, of a storage device is the logarithm to thbase two of the number of possible states of the device.

bit per second b/s

British thermal unit Btu

candela cd SI unit of luminous intensity

candela per square inch cd/in2 Use of the SI unit, cd/m2, is preferred.

candela per square meter cd/m2 SI unit of luminance. The name nit is sometimes used for tunit.

centimeter cm

circular mil cmil 1 cmil = (π/4) • 10-6 in2

coulomb C SI unit of electric charge

cubic centimeter cm3

cubic foot ft3

cubic foot per minute ft3/min

cubic foot per second ft3/s

cubic inch in3

cubic meter m3

cubic meter per second m3/s

cubic yard yd3

GENIUM PUBLISHING

Section K13.3Page 5

November 28, 1983


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TABLE 1SYMBOLS FOR UNITS FOR GENERAL USE (Continued)

UNIT SYMBOL NOTES

curie Ci A unit of activity of radionuclide. Use of the SI unit, thebecquerel, is preferred, 1 Ci = 3.7 x 1010 Bq.

cycle c

cycle per second Hz, c/s See hertz. The name hertz is internationally accepted for thiunit; the symbol Hz is preferred to c/s.

day d

decibel dB See Appendix A for guidance concerning notation.

degree (plane angle) . . .˚

degree (temperature):

degree Celsius ˚C SI unit of Celsius temperature. The degree Celsius is a specname for the kelvin, for use in expressing Celsius tempera-tures or temperature intervals.

degree Fahrenheit ˚F Note that the symbols for ˚C, ˚F, and ˚R comprise twoelements, written with no space between the ˚ and the letterthat follows. The two elements that make the completesymbol are not to be separated.

degree Kelvin See kelvin

degree Rankine ˚R

electronvolt eV

farad F SI unit of capacitance

femtometer fm

foot ft

conventional foot of water ftH2O 1 ftH2O = 2989.1 Pa (ISO)*

foot per minute ft/min

foot per second ft/s

foot per second squared ft/s2

foot pound-force ft • lbf

footcandle fc 1 fc = 1 lm/ft2. The name lumen per square foot is also usedfor this unit. Use of the SI unit of illuminance, the lux(lumen) per square meter, is preferred.

footlambert fL 1 fL = (1/π) cd/ft2. A unit of luminance. One lumen persquare foot leaves a surface whose luminance is onefootlambert in all directions within a hemisphere. Use ofthe SI unit, the candela per square meter, is preferred.

gallon gal 1 galUK = 4.5461 L

1 galUS = 231 in3 = 3.7854 L

gigaelectronvolt GeV

gigahertz GHz

grain gr

gram g

*ISO International Organization for Standardization

GENIUM PUBLISHING



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UNIT SYMBOL NOTES

*ISO International Organization for Standardization

†CGPM Conférence Générale des Poids et Measures (General Conference on Weights and Measures)

§Comite International des Poids et Measures (International Committee for Weights and Measures)

gram per cubic centimeter g/cm3

gray Gy SI unit of absorbed dose in the field of radiation dosimetry.

henry H SI unit of inductance

hertz Hz SI unit of frequencyhorsepower hp The horsepower is an anachronism in science and technolo

Use of the SI unit of power, the watt, is preferred.

hour h

inch in

conventional inch of mercury inHg 1 inHg = 3386.4 Pa (ISO)*

conventional inch of water inH2O 1 inH2O = 249.09 Pa (ISO)*

inch per second in/s

joule J SI unit of energy, work quantity of heat

joule per kelvin J/K SI unit of heat capacity and entropy

kelvin K In 1967 the CGPM† gave the name kelvin to the SI unit oftemperature which had formerly been called degree kelvinand assigned it the symbol K (without the symbol˚).

kilogram kg SI unit of mass

kilohertz kHz

kilohm k

kilometer km

kilometer per hour km/h

kilopound-force klbf Kilopound-force should not be misinterpreted as kilopond.(see kilogram-force).

kilovar kvar

kilovolt kV

kilovoltampere kVA

kilowatt kW

kilowatthour kWh Also kW•h

knot kn 1 kn = 1 nmi/h

liter L 1 L = 10-3 m3. The letter symbol 1 has been adopted for literby the CGPM, and it is recommended in a number ofinternational standards. In 1978 the CIPM§ accepted L asan alternative symbol. Because of frequent confusion withthe numeral 1 the letter symbol l is no longer recommendedfor USA use. The script letter l, which had been proposed,is not recommended as a symbol for liter.

liter per second L/s

lumen lm SI unit of luminous flux

GENIUM PUBLISHING

Section K13.3Page 7

November 28, 1983



UNIT SYMBOL NOTES

lumen per square foot lm/ft2 A unit of illuminance and also a unit of luminous exitance.Use of the SI unit, lumen per square meter, is preferred.

lumen per square meter lm/m2 SI unit of luminous exitance

lumen per watt lm/W SI unit of luminous efficacy

lumen second lm•s SI unit of quantity of light

lux lx 1 lx = 1 lm/m2

SI unit of illuminance

megaelectronvolt MeV

megahertz MHz

megohm MΩmeter m SI unit of length

microampere µA

microfarad µF

microgram µgmicrohenry µH

microinch µin

microliter µL See note for liter

micrometer µm

microsecond µs

microwatt µW

mil mil 1 mil = 0.001 in

mile (statute) mi 1 mi = 5280 ft

milliampere mA

milligram mg

millihenry mH

milliliter mL See note for liter.

millimeter mm

millipascal second mPa•s SI unit-multiple of dynamic viscosity

millisecond ms

millivolt ms

millivolt mV

milliwatt mW

minute (plane angle) . . . '

minute (time) min Time may also be designated by means of superscripts as inthe following example: 9h46m30s.

mole mol SI unit of amount of substance.

month mo

nanoampere nA

nanofarad nF

nanometer nm

GENIUM PUBLISHING



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UNIT SYMBOL NOTES

nanosecond ns

nautical mile nmi 1 nmi = 1852 m

neper Np See Appendix B for guidance concerning notation.

newton N SI unit of forcenewton meter N•m

newton per square meter N/M2 SI unit of pressure or stress, see pascal.

nit nt 1 nt = 1 cd/m2

The name nit is sometimes given to the SI unit of lumi-nance, the candela per square meter.

ohm Ω SI unit of resistance

ounce (avoirdupois) oz

pascal Pa 1 Pa = 1 N/m2

SI unit of pressure or stress

pascal second Pa•s SI unit of dynamic viscosity

picofarad pF

picowatt pW

pint pt 1 pt (UK ) = 0.568 26 L

1 pt (US dry) = 0.550 61 L

1 pt (US liquid) = 0.473 18 L

pound lb

pound per cubic foot lb/ft3

pound-force lbf

pound-force foot lbf•ft

pound-force per square foot lbf/ft2

poundal pdl

quart qt 1 qt (UK) = 1.136 5 L

1 qt (US dry) = 1.101 2 L

1 qt (US liquid) = 0.946 35 L

rad rd A unit of absorbed dose in the field of radiation dosimetry.Use of the SI unit, the gray, is preferred. 1 rd = 0.01 Gy.

radian rad SI unit of plane angle

rem rem A unit of dose equivalent in the field of radiation dosimetry[Use of the SI unit, the sievert, is preferred. 1 rem = 0.01Sv]10

revolution per minute r/min Although use of rpm as an abbreviation is common, it shounot be used as a symbol.

revolution per second r/s

roentgen R A unit of exposure in the field of radiation dosimetry

second (plane angle) . . ."

second (time) s SI unit of time

GENIUM PUBLISHING

Section K13.3Page 9

November 28, 1983


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UNIT SYMBOL NOTES

siemens S 1 S = 1 Ω-1

SI unit of conductance. The name mho has been used for this unit in the USA

sievert* Sv SI unit of dose equivalent in the field of radiation dosimetry.Name adopted by the CIPM in 1978*

slug slug 1 slug = 14.5939 kg

square foot ft2

square inch in2

square meter m2

square meter per second m2/s SI unit of kinematic viscosity

square millimeter per second mm2/s SI unit-multiple of knematic viscosity

square yard yd2

steradian sr SI unit of solid angle

tesla T 1 T = 1 N/(A•m) = 1 Wb/m2. SI unit of magnetic flux density(magnetic induction)

therm thm 1 thm = 100 000 Btu

ton (short) ton 1 ton = 2000 lb

ton, metric t 1 t = 1000 kg

(unified) atomic mass unit u The (unified) atomic mass unit is defined as one twelfth of tmass of an atom of the 12C nuclide. Use of the old atomicmass unit (amu), defined by reference to oxygen, isdeprecated.

var var IEC† name and symbol for the SI unit of reactive power.

volt V SI unit of voltage

volt per meter V/m SI unit of electric field strength

voltampere VA IEC name and symbol for the SI unit of apparent power

watt W SI unit of power

watt per meter kelvin W/(m•K) SI unit of thermal conductivity

watt per steradian W/sr SI unit of radiant intensity

watt per steradian square meter W/(sr•m2) SI unit of radiance

watthour Wh

weber Wb Wb = V•s. SI unit of magnetic flux.

yard yd

year a In the English language, generally yr

*This item was added during publication to provide complete information on a 1978 International Committee of Weights Measures (CIPM) action. It is not yet a part of the standard.

†IEC – International Electrotechnical Commission

GENIUM PUBLISHING



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angstrom A 1 A = 10-10m.

atmosphere, standard atm 1 atm = 101 325 Pa.

atmosphere, technical at 1 at = 1 kgf/cm2

bar bar 1 bar = 100 kPa. Use of the bar is strongly discouraged,except for limited use in meteorology.

calorie (International table calorie) cal IT 1 cal IT = 4.1868 J.

calorie (thermochemical calorie) cal 1 cal = 4.12840 J.

candle cd The unit of luminous intensity has been given the namecandela; use of the name candle for this unit is deprecate

centipoise cP 1 cP = 1 mPa•s. The name is deprecated.

centistokes cSt 1 cSt = 1 mm2/s. The name centistokes is deprecated.

darcy D 1 D = 1 cP (cm/s) (cm/atm) = 0.986 923 µm2. A unit ofpermeability of a porous medium. By traditional definition,a permeability of one darcy will permit a flow of 1 cm3/sof fluid of 1 cP viscosity through an area of 1 cm2 under apressure gradient of 1 atm/cm. For nonprecision work 1 Dmay be taken equal to 1 µm2 and 1 mD equal to 0.001 µm2.

dyne dyn

erg erg

gal Gal 1 Gal = 1 cm/s2

gauss G The gauss is the electromagnetic CGS* unit of magnetic fludensity.

gilbert Gb The gilbert is the electromagnetic CGS unit of magnetomo-tive force.

kilograuss kG

kilogram-force kgf In some countries the name kilopond (kp) has been used fothis unit.

lambert L 1 L = (1/π) cd/cm2. A CGS unit of luminance. One lumenper square centimeter leaves a surface whose luminanceone lambert in all directions within a hemisphere.

maxwell Mx The maxwell is the electromagnetic CGS unit of magneticflux.

metric ton t 1 t = 1000 kg. The name tonne is used in some countries fothis unit, but use of this name in the USA is deprecated.

mho mho Formerly used as the name of the siemens (S).

micron µm Use micrometer.

mile per hour mi/h Although use of mph as an abbreviation is common, it shonot be used as a symbol.

millibar mbar Use of the bar is strongly discouraged except for limited usin meteorology.

TABLE 2DEPRECATED SYMBOLS FOR UNITS (Included as information only)

UNIT SYMBOL NOTES

*CGG – centimeter-gram-second

GENIUM PUBLISHING

Section K13.3Page 11

November 28, 1983


TABLE 2DEPRECATED SYMBOLS FOR UNITS (Included as information only) (Continued)

UNIT SYMBOL NOTES

millimeter conventional millimeter of mercury mmHg 1 mmHg = 133.322 Pa

millimicron nm Use of the millimicron for the nanometer is deprecated.

oersted Oe The oersted is the electromagnetic CGS unit of magneticfield strength.

phot ph 1 ph = lm/cm2. CGS unit of illuminance.

poise P

pound-force per square inch lbf/in2 Although use of the abbreviation psi is common, it shouldnot be used as a symbol.

stilb sb 1 sb = 1 cd/cm2. A CGS unit of luminance.

stokes St

GENIUM PUBLISHING



TABLE 3EXAMPLES OF SYMBOLS FOR LIMITED-CHARACTERS SET

FORM I FORM II(Double case) (Lower only) (Upper only)

ampere A a Aampere per meter A/m a/m A/Mangstrom A a Abarrel bbl bbl BBLbecquerel Bq bq BQBritish thermal unit Btu btu BTUcandela per square meter cd/m2 cd/m2 CD/M2centimeter cm cm CMcoulomb C c Ccubic meter per second m3/s m3/s M3/Sdecibel dB db DBdegree (plane angle) deg deg DEGdegree Celsius C c Cdegree Fahrenheit F f Ffarad F f Ffoot per second ft/s ft/s FT/Shenry H h Hhour h h Hjoule per kelvin J/K j/k J/Kkilogram kg kg KGkilometer km km KMkilowatthour kWh kwh KWHlumen per watt lm/w lm/w LM/Wmegahertz MHz mhz MHZmegohm* MOhm mohm MOHMmeter m m Mmetric ton t t Tmicrofarad uF uf UFmicrosecond us us USmile per hour mi/h mi/h MI/Hmilliliter mL ml MLmillipascal second mPa•s mpa•s MPA•Snewton meter N•m n•m N•Mpicowatt pW pw PWpound-force foot lbf•ft lbf•ft LBF•FTtesla T t Tvolt per meter V/m v/m V/Mwatt per steradian square meter W/(sr•m2) w/(sr•m2) W/(SR•M2)weber Wb wb WByard yd yd YD

* If the context permits possible confusion with milliohm, spell it out.

GENIUM PUBLISHING

Section K13.3Page 13

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Appendix A

Notation for Expressing the Reference of a Level

A level represents a quantity x with a reference quantity xref can be indicated as:

Lx (ref xref) or by Lx/x ref

Examples: The statement that a certain sound pressure level is 15 dB above the level correspondinreference pressure of 20 Pa can be indicated as:

Lp (ref 20 Pa) = 15 dB

or as

Lp/20 Pa = 15 dB

The statement that the level of a current is 10 nP below 1 A can be indicated as:

LI (ref 1A) = -10 Np

The statement that a certain power level is 7 dB above 1 mW can be indicated as:

Lp (ref 1 mW) = 7 dB

The statement that a certain electric field strength is 50 dB above 1 V/m can be indicated as :

LE (ref 1 V/m) = 50 dB

In presenting data, particularly in tabular form or in graphic symbols, a condensed notation may be nfor identifying the reference value. Then the following condensed form, illustrated by application to tabove examples, may be used:

15 dB (20 Pa)

-10 Np (1 A)

7 dB (1 mW)

50 dB (1 V/m)

A “1” in the expression of a reference quantity may be omitted in cases where no confusion may occu

When a constant reference quantity is used repeatedly in a given context and explained in the text, itomitted.

GENIUM PUBLISHING



Appendix B

Symbol Changes and Deletions

UNIT SYMBOL RECOMMENDED

ampere-turn At A

apostilb asb deleted

calorie (thermochemical calorie) calth cal

candela per square foot cd/ft2 deleted

decibel referred to one milliwat dBm See Appendix A

foot poundal ft•pdl deleted

foot pound-force ft•lbf ft•lbf

gallon per minute gal/min deleted

gigacycle per second GHz deleted

gram per cubic centimeter g/cm3 deleted

kilocycle per second kHz deleted

kilogram-force kgf kgf

kilopound-force klbf klbf

knot knot kn

liter l L

liter per second l/s L/s

megacycle per second MHz deleted

microbar µbar deleted

millidarcy mD deletedmilliliter ml mL

newton second per square meter N•s/m2 deleted

pound-force lbf lbf

pound-force foot lbf•ft lbf•ft

pound-force per square foot lbf/ft2 lbf/ft2

pound-force per square inch lbf/in2 lbf/in2

pound per square inch – deleted

GENIUM PUBLISHING

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