ANAMERICANNATIONALSTANDARDPIPETHREADS,GENERALPURPOSE(INCH)ANSI/ASMEB1.20.1-1983(REVISIONANDREDESIGNATIONOFANSI82.1-1968)REAFFIRMED1992FORCURRENTCOMMITTEEPERSONNELPLEASESEEASMEMANUALAS-11SPONSOREDANDPUBLISHEDBYTHEAMERICANSOCIETYOFMECHANICALENGINEERSUnitedEngineeringCenter345East47thStreetNewYork,N.Y.10017CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwREAFFIRMED2001FORCURRENTCOMMITTEEPERSONNELPLEASEE-MAILCS@asme.orgANSllASME81.20.1-198325October1984ACCEPTANCENOTICEThisnon-Governmentdocumentwasadoptedon25October1984andisapprovedforusebytheFederalAgencies.Theindicatecindustrygrouphasfurnishedtheclearancerequiredbyexistingregulations.CopiesofthedocumentarestockedbytheDoDSingleStockPoint,NavalPublicationsandFormsCenter,Philadelphia,PA19120,forissuetoDoDactivitiesonly.Contractorsandindustrygroupsmustobtaincopiesdirectlyfrom:TheAmericanSocietyofMechanicalEngineers345East47thStreetNewYork,NewYork10017orTheAmericanNationalStandardsInstitute1430BroadwayNewYork,NewYork10018TitleofDocument:PipeThreads,GeneralPurpose(Inch)DateofSpecificIssueAdopted:4February1983ReleasingIndustryGroup:TheAmericanSocietyofMechanicalEngineersNOTICE:TheFederalagenciesuseofthisstandardissubjecttoalltherequirementsandlimitationsofFED-STD-H28/7ScrewThreadStandardsforFederalServicesSection7,PipeThreads,GeneralPurpose.NOTICE:Whenreaffirmation,amendment,revision,orcancellationofthisstandardisinitiallyproposed,theindustrygroupre.sponsibleforthisstandard,shallinformthemilitarycoordinatingactivityortheproposedchangeandrequestparticipation.Custodians:Army-ARNavy-ASAirForce-11ReviewActivities:Navy-YDArmy-AT,GL,ME,MICivilAgencyCoordinatingActivities:Commerce-NBSJustice-FPIDOT-ACO,APM,FAA,FRA,NHTNASA-JFK,LRC,MSFHUD-HCCGSA-FSS,PCDUSDA-AFSMilitaryCoordinatingActivity:DLA-IS(ProjectTHDS-0052)AREATHD:DateofIssuance:August31,1983Thiscodeorstandardwasdevelopedunderproced...