DLA MIL-HDBK-131 A-1966 IDENTIFICATION MARKINGS FOR FASTENERS (HANDBOOK H-131)《(H-131手册)夹持器的认证标记》.pdf

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1、,0I !.-9e. .MiL- HDBK-131A15 September1966SUPERSEDINGMIL HDBK 1317 November1958MILITARY STANDARDIZATION HANDBOOKIDENTIFICATIONMARKINGSFOR FASTENERSm-.-”Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.llI,.HI)BK- 131Aa71I.;. .DEPARTMENT OF DEFENSEWAS

2、HINGTON, D.c. 203013111HDRK- 1.11AIdentification Markings for FastenersDate of approval :1. This standardization handbook was developed by theDepartment of Defense with the assistance of the Industrial.Fasteners Jnstitute in accordance with established procedures.7-. This publication was approved on

3、 15 .%ptember 1966 forprinting and inclusion in the military standardization handbookseries.3. This document provides a basic means for identifyingthe material and mechanical properties of fasteners by theirrespective markings.4. Every effort has been made to reflect the latest infor-mation on bead

4、markings for fasteners. It is the intent toreview this handbook periodically to insure its completenessand currency. Users of this document are encouraged to reportany errors discovered and any recommendations for changes orinclusion to Hq. lJ.S. Army Weapons Command, Attn: AMSWE-RDT ,Rock Island Ar

5、senal, Rock Island, Illinois 61201.a71Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK- 131Aa71ContentsForeword .General Applicable documents .Federal and MilitaryOther publicationsRelationship of code markings Manufacturers trade-mark Abbrev

6、iations Marking requirements .TablesASTM identification markings .SAE identification markings AN and MS identification markings Military identification marking, notcovered elsewhere NAS identification markingIdentification markings for shipbuildingItems in MlHDBK-131, not identified inMIIH)NK-131A .

7、Cross reference data .Paragraph122.12.23.456TableNumbersIIIIIIIVvVIVIIVIIIPageivvvvvviviiiviiiviiiPage114174345677274iiia71Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Ia71,MIL.HDLsK.131A1. GENERAL1.1 Purpose. The purpose of this handbook is to pr

8、ovidea means for identifying the materials and mechanical propertiesof fasteners, by their respective markings.1.2 Scope. This handbook illustrates identificationmarkings for fasteners. Because of the wide use of variousidentification markings , this military handbook is publishedto minimize the pos

9、sibility of introducing duplicate markings.2. APPLIcABLE DOCUMENTS2.1 Federal and Military. The federal and military speci.fications, military standards (MS and AN) specified in thishandbook are available at the source listed below:Navel Supply Depot5801 Tabor AvenuePhiladelphia , Pennsylvania 19120

10、2.2 Other publications .2.2.1 Industrial. The following industrial specifications ,standards and handbooks, listed within this military handbook,are available at the following sources:American Society for Testing and MaterialsASTM Handbook for Ferrous Metals(Application for copies should be addresse

11、d to the AmericanSociety for Testing and Materials, 1916 Race Street, Philadelphia,Pennsylvania 19103. )General Motors Engineering StandardsCM Material Standards(Application for copies should be addressed to the GeneralMotors Corporation , General Motors Technical Center, Warren,Michigan 48090. )Gen

12、eral Dynamics Corp. - Electric Boat DivisionSpecification GD/EB-l: ,: Harked on top of head,YS PSI mitt Ius the spec. number.Structural Steel Prf Load PSI 85 000 See column 2)Ht Tr BHN 241.331RH C23-35I Over 3/4 TS PSI min 115,000thru 1 dia YS PSI rain 81,000A; 5 Prf Load PSI IB,000BHN 235-321RH C22

13、-34Over 1 thru TS PSI tin 105,0001-1/2 dia YS PSI tin 77,000Prf Load PSI 74,000BHN 223-293RH C19-31Nuts fori”) 325 fCarbon No l/2 thruHi h Str BHNmLnSteel 143 Narked on one face ofl-1/2 diaa71Prf Load basedBo tsnut, raised oron 144,000 PSI depressed.Bolts and Alla;1, 3” ?Yes l/4 thru TS PSI minStuds

14、 Stee150,000 Marked on top of head1-1/2 dia KS PSI mitt 125,000 for bolts and on one/l (Grad; Prf Load PSI 120,000 end for studs.BD) BHN 302-352 Equivalent to SAERH C32-38 Grade 8.c. A354 Bolts and Alloy Yes l/4 thru TS PSI minStuds 12S ,000 Marked on top of headSteel, 2-1/2 diaBcYS PsI tin(Grade 10

15、9,000 for bolts and on onePrf Load PSI fi: ,2; end for st”d.BC)BHNRH C2;-34Proof load to be based on the indicated stress in the bolt used during test,Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-T.ltlT17T - AQTMTnRNTT!JTP000 end for studs.BC) BHN

16、 2S5-321RH C25-341. A354 Bolts and Allov Yes 1/4 thru TS PSI tinStuds 105,000 Marked on top of headSteel 2-1/2 dia YS PSI min 83, OOO for bolts and on oneGrade BB Prf Load PSI 80,000 end for studs.BHN 217-285BBRH C18-30Over 2-1/2 TS PSI min 100,000thru 4 dia YS PSI min 78,000Prf Load PSI 75,000BRN 2

17、11-2B5RH CIS-302. A490 Bolts High Allo I Yes 1/2 thru TS PSI tinStr, 4truc- 150,000 Narked on top of head.Stee 2-1/2 dia YS PSI tin 125,000tural Prf Load PSI 120,000BHN 302-352RH C32-3S4490 Over 2-1/2 TS PSI tin 140,000thru 4 dia YS PSI min 115,000Prf Load PSI 105,000BHN 2B5-341RH C30-36.3. A193 Bol

18、ts and Cres , Yes 1/4 thru 4 TS PSI mina755100,000 Marked on top of headStuds for AISI 501 dia YS PSI tin SO,000 for bolts and on endHigh Temp (GradeB5)for studs.3. A193 Bolts and Cres, Yes 1/4 thru 4 TS PSI tinB6 Studs, for AISI 416110,000 Marked on top ,of headdia YS PSI minHigh TempB5,000 for bol

19、ts and on endor 416SE(Grade B6)for studs.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- TABLE I - ASTMIDENTIFIcATION M4RKINGSMFR.,S1DENTIFI -OtiNTIFl- NOMINALASTM cATION SIZECATION SPECIFI - FASTEhRNARK CATIONSYMBOL 5ANCEDESCRIPTION MATERIAL REQUIR

20、ED ( INcHES)t45CHANICALPROPERTIES5. A193 Bolts and A11o1 Yes 1/4 thru TS PSI mi”Studs for Stee , 125,000 Marked on top of head2-1/2 dia YS PSI minHigh Temp AISI 105,000 for bolts and on endfor studs.4140, Over 2-1/2 TS PSI min11s,000B7 4142 or thru 4 dia YS PSI mi” 95,0004145(Grade Over 4 thru TS PS

21、I minB7) 100,0007 dia YS PSI tin(o.15- 75,0000.25 Mo)6. A193 Bolts and Alloy Yes 1/4 thru TS PSI minB14 Studs for125,000 Marked on top of headSteel, 2-1/2 dia W PSI minHigh Temp (o,30- 105,000 for bolts and on endfor studs.0.40 MO)7,. A193 Bolts and Alloy Yes l/4 thru TS PSI min 125,000 Marked on to

22、p of headStuds for Steel, 2-1/2 dia YS PSI tin 105,000 for boltsand on endHigh Temp (o,50-for studs.B16 0.65 Mo) Over Z-1/2 TS PSI tin 110,000thru 4 dia YS PSI min 95,000Over 4 thru TS PSI min7 dia100,000YS PSI min85,000. A193 and Bolts and Cres , Yes Thru 4 dia TS PSI tin 75,000 Marked on top of he

23、adB8 A320 Studs for AISI 304 YS PSI tinHigh Temp 30,000 for bolts and on endfor studs. (See item274, table VI)A193 and Bolts and Cres, Yes Thru 4 dia TS PSI tini8C A320 Studs for AISI 34775,000 Uarked on top of headYS PSI tinHigh Temp 30,000 for bolts and On endfor studs.o. A193 Bolt and Cres, Yes T

24、hru 4 dia TS PSI min68M Studs for75,000 Narked on top of headAISI 316 YS PSI min30,000 for bolts and on endHigH Temp for studs. (See item276 of table VI)Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71 a71 o.TABLE I - ASTM lDENTIFIcXTION NARKIAVS1

25、MFR.SIDENTIF1- NOMINAL)k;sTl FI ASTN:,!TIosCATIOS SIZEsrEcr Fl - FASTEYER STMBOL RANGE.MAllhcATIOSNEcHAN1CALDE5CR1PTIOS .MATERIAL REQUIRELI Ihclfss ) Properties RENARKSA193 dnd Bolts and Cres , Yes Thru 4 dia TS PSI a75in4.?20 studs for75,000 Marked on tou of headAISI 321 YS PSI min 30,000High TempA

26、193 .tndA320A193 andA320Bolts andStuds forH,gh TempBolts andStuds forHigh Tempcre5 ;ScrdinHardened ,AISI 304Cres,StrainHardened,AISI 347Yes l/4 thru3/4 diaOver 3/4thru 1 iiaOver 1 chru1-1/4 diaOver l-1/4thru l-1/2diaYes l/4 thru3/4 diaOver 3/4thru 1 diaTS PSI tinYS PSI ndnBHNIIMXTS PSI minYS PSI nin

27、BHNIMXTS PSI rainYS PSI minBHNmaxTS PSI minYS PSI minBHNIMXTS PSI minYS PSI minBHNmaxTS PSI minYS PSI minBHNmaxOver 1 thru TS PSI min1-1/4 did YS PSI minBHNIMXOver l-1/4 TS PSI minthru 1-1/2 YS PSI mindia BHNtiX12s,000100,000320115,00080,00032o105,00065,000320100,00050,000320125,000100,0003Z0115,006

28、80,000320105,00065,000320100,00050,000320for bolts an on endfor studs.Marked on top of headfor bolts and on endfor studs, (See item275, table VI)Line under symbolindicates strainhardened material,Marked on top of headfor bolts and on endfor studs.Line under symbolindicates strainhardened material.Pr

29、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. -. . . . .” . . . . . . . . . . . . . . . . . . . . .,. ”IAULI!,1 - R3Nl lUhNll FLL.,lli UN MANhltltibMFR.iSIDENTIFI-NOMINALDEXTIFl- A.STM CATION SIZEcATIOS SPECIFI - FASTENER SYMBOL RAflCE iC3CHANlCALM

30、ANK CATION DESCRIPTION !LATERIAL REQUIREO(INCHES) PROPERTIES REMARiiS4. A193 Bolts and Cres ! Yes 1/4 thru 3/4 TS PSI min 125,000 !Larked on cop of headStuds for Strain dia YS PSI rniu 100,000 far bolts and on endHigh Temp Hardened , BHNmax 320 fc.r studs.AISI 316 Line under symbolOver 3/4 TS PSI mi

31、n 115,000 indicates straintbru 1 dia K. PSI tin 80,000 hardened material.B8MBHNIMX 320 (See item 277, tableVI)Over 1 thru TS PSI min 105,0001-1/4 dia YS PSI min 65,000BHNw 320Over 1-1/4 TS PSI min 100,000thru 1-1/2 YS PsI tin 50,000diaBHNMdX 3205. A193 and Bolts and Cres , Yes 1/4 thru 3/4 TS PSI mi

32、nA320 125,000 Marked on top of headStuds for Strain dia YS PSI tin 100,000 for bolts and cm endHigh Temp Hardened, BHNmax 320 for studs.AISI 321 Line under symbolOver 3/4 TS PSI min 115,000 indicates strainthru 1 dia YS PSI min B0,000 hard.med material.BHNmax 320Over 1 thru TS PSI min 105,0001-1/4 d

33、ia YS PSI min 65,000BHNa75m 320Over 1-1/4 TS PSI min 100,000thru 1-1/2 YS PSI rain 50,000dia LIHNIWX 3206. A194 !hlts, Hot Carbon Yes 1/4 and BHNmin 120 Nut? leibly stampedForg or Cold Steel larger * Prf 10ad based1 Formed forto Indicate gradeHi h Press. on 130,000 PSI and process of manu-! facture.

34、an /or HighTempJ Proof load to be used on the indicated stress in th bolt used during test.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-!.TABLE I ASTMIDENTIFICATION MARKINGSMFR.,SIDENTIFl- NOMINALllWXTIFI- ASTMcATIOSCATION SIZESPECIF1- FASTEhR SYM

35、BOL.MAIFli CATIOSRANGE MECHANIMLDESCRIPTION MATERIAL REQUIRSD ( INCHES) PROPERTIES REMARKS228.2H29.330.4Il.6A194A194A194A194AI94Airs, HotForg or ColdFormed fo?Hi h Press.an /or HighTemp?hts, Hotberg or ColdFarmed farHi h Press,$an /or HighTempCarbonSteelCarbonSteel,Ht TrCres ,AISI 501AlloySteel(:res

36、,Al$l416l/4 andlarger1/4 andlarger1/4 andlargerl/4 andlarger1/4 a“dlargerBHN 163-352!. Prf load basedon 150,000 PSIBHN 248-352:f1+;aojgc24-3BHN 248-352RH C24-3E Prf load easedon 175,000 PSIBHti ?4s-352RH C24-3$* Prf load basedon 175,000 PSIBHN 248-352RH C24-39* Prf load basedon 175.000 PSINut! legib

37、ly stampedto Indicate grade andprocess of manufac-ture.Nut , Ieglbly stampedto Indicate gradeand process of manu-facture.Nut ! legibly stampedto Indicate gradea“d process of Manu-facture.Nut. leglbly stampedto indicate gradea“d process of manu-facture.Nut! legibly st.mpedto Indicate gradeand process

38、 of manu-facture.) Proof load to be based on the indicated stre$s i“ the bolt used during test.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TAR1.F, 1 . ASTM1nl?NT1!7TcATT(3NMARKINP.So. - - . . . . . . . . . . . . . . . .MFR.lSIDENTIFI-DENTIFI-NOMI

39、NALASTN CATION SIZEcATION SPECIFI- FASTENER.!14RKSYMBOL fL4NCE NECHANICALCATION DESCRIPTION MATERIAL REQUIRED (INCHES) PROPERTIES REMARKS2. A194 Nuts, Hot Cres , Yes l/4 and BHNminFor cd or$149 Nut, legibly stampedAISI 304larger RH ruin B81 to indicate grade and8 Col Formedfor High process of manufa

40、c-Press. and/cure.or High Temp3. A194 Nuts , Hot Cres , Yes l/4 and BHNminForg or Cold AISI 347 149 Nut , legibly stampedlarger RH min B81 to indicate grade8C Formed for and process of manu-Hi h Press.ffacture.an /or HighTemp!. A194 Nuts, Hot Cres , Yes l/4 and BHNminForg or Cold AISI 321 149 Nut, l

41、egibly stampedlarger RH min BS1 to indicate grade and8T Formed forHi b Press. process of manufac-5an or Highture.Temp5. A19.1 Nuts, Hot Cres , Yes l/4 and BHNmin 149 Nut! leglbly stampedForg or Cold AISI 303 larger RH min B81 to Indicate grade and8F Formed forHi h Press. process of manufac-:ture.an

42、/or HighTemp5. A194 Nuts, Mach- Carbon Yes l/4 and BHNfrom-Bar for SteelIB larger 120 Marked sameas item* Prf load based Z6, except symbol “B!Hi b Press.8on 130,000 PSI specifies bar stock.an /or HighTemp7. A194 Nuts , Mach- Carbon Yes l/4 and BHN 163-352 Marked same as itemfrom-Bar for Steel26 larg

43、er * Prf load based 27, except symbol llB1Hi b Press.5 on 150,000 PSI specifies bar stock.an /or HighTempProof load to be based on the indicated stress in bolt used during tbe testProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71TABLE 1 . ASTMI DEN

44、TIF1CATIONMARKJNGSa71MFR.!SlDENTl F1- NOMINAL)MTJ l;l - ASTN:ATIOXCATIOX SIZESPECIFl - FASTEhTR SYNBOL RANGENARK CATIOS MECHANICALDESCRIPTION NATERIAL REQUIRED (INCHES) PROPERTIES REMARKS;, A194 Nuts, Mach- Carbon Yes 1/4 and BHN 24S-352 Marked same as itemfrom-Bar for Steel, larger RH C24-36 28, ex

45、cept symbol “H”2HB Hi h Press.f Ht Tr : Prf load based specifies ht cr andan /or High on 175,00D PSI !B! specifiesbarTemp stock.1. A194 NUtS, Mach- Cres , Yes l/4 and BHNfrom-Bar for AISI 501 248-352 Marked same as iremlarger RH CZ4-38 z9, except symbol “B”36 Hi h Press.5 * Pt-f load based on specif

46、ies bar stock,an /or HighTemp175,000 PSI). A194 Nuts, Mach- Allo 1 Yes l/4 and BHN 248-352 Marked same as itemfrom-klar for Stee larger RH c24-3Y 30, except symbol “B”4B Hi h Press.! $. Prf load basedan /or High specifies bar stock.Tempan 175,000 PSI1. A194 Nuts , Mach- Cres , Yes l/4 and BHN 248-3S

47、2 Marked same as itemfrom-Bar for AISL 4166Blarger RH c24-38 31, e.vcepc symbol llB1lHi h Press$ Prf load based specifies bar stock.an /or HighTemp on 173,000 PSf2. A194 Nuts, Mac,h- Cres, Yes 1/4 and BHNminfrom-Bar for AISl 304149 Marked same as itemlarger RH min8BB81 32, except symbol “B1Hi h Pres

48、s$an /or Highspecifies bar stock.TemP3. A194 Nuts , Mach- Cres , Yes 1/4 and BHti minfrom-Bar for AISI 347 149 Marked same as itemlarger RH min8CBB81 33, except symbol “B”Hi h Press.8an /or Highspecifies bar stock.TempProof load to be based on the indicated stress in bolt used during test.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.,. ”- . ,.-. ” .“- . . . . . .- ”., ,m., ,= ”MFR.SIDENTIFI. NOMINALIDENTIFI- ASTMcATION CATIONSPECIFI- SX2EFASTENSR SYMBOLNARK CATIONRANGE MEcHANIcALDESCRIPTION MATERIAL REQUIRED (INCNNS) PROPERTIES REMARKS44,

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