USASTANDARDSPINDLENOSESUSAS85.9·1967REAFFIRM�D1986SponJorJAmericanSocietyafToolandMonufocturingEngineersSocietyofAutomotiveEngineersNationalMachineToolBuilders'AssociationTheAmericanSocietyofMechanicalEngineersForToolRoomLathes,EngineLathes,TurretLathes,andAutomaticLathesTHEAMERICANsocrETYOFMECHANICALENGINEERSUnitedEngineeringCenter345East47thStreetNewYork,N.Y.10017REAFFIRMED2014FORCURRENTCOMMITTEEPERSONNELPLEASEE-MAILCS@asme.orgACCEPTANCENOTICEUSASB5.9-1967(R-1972)12DECEMBER1978Theabovenon-Governmentdocumentwasadoptedon12December1978andisapprovedforusebytheDoD.Theindicatedindustrygrouphasfurnishedtheclearancerequiredbyexistingregulation.CopiesofthedocumentarestockedbytheDoDSingleStockPoint,NavalPublicationsandFormsCenter,Philadelphia,PA19120forissuetoDoDactivitiesonly.ContractorsandindustrygroupsmustorderdirectlyfromASME,345East47thStreet,NewYork,NY10017.TitleofDocument:SpindleNosesforToolRoomLathes,EngineLathes,TurretLathes,andAutomaticLathesDateofSpecificIssueAdopted:1967;Reaffirmed1972ReleasingIndustryGroup:AmericanSocietyofMechanicalEngineersCustodians:Army-ALNavy-SHAirForce99Reviewactivities:Army-AR,MENavySHAirForce99Useractivities:Army-GLAirForce-99MilitaryCoordinatingActivity:DLA-IP(Project34GP-OOOS)Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.Copyright,©,1967byfflEAMERICANSOCIETYOFMECHANICALENGINEERSPrintedinU.S.A.ForewordTHEfirsteditionofthisstandard,knownasB5.9-1936,wasdevelopedbyTechnicalCommitteeNo.4onSpindleNosesofSectionalCommitteeB5ontheStandardizationofSmallToolsandMachineToolElements.Thesecondedition,knownasB5.9-1948,broadenedthescopeofthestandardtoincludefivesizesofTypeLspindlenoses,twosmallersizesofTypesA,BandDspindlenoses,namely,the2in.and3in.,andanewspindlenoselargerthanthe20in.forTypesAandB,nowknownasthe28-in.nose.SimilarchangesweremadeintheAmericanStandardforChucksandChuckJaws(ASAB5.8).Thethirdedition,knownasB5.9-1954,incorporatedUnifiedScrewThread...