1、MINIMUMDEPTHMINIMUMDEPTHL1 THREAD PLUGL3 THREAD PLUGNational Standard Code (0=None, 1=ISO, 2=ANSI, 3=BSI, 4=DIN) G Tauging Standard hread GaugeGT3 12.0 0 1/418Thread Pitch (Threads Per Inch)Nominal Thread SizeWorkpiece Minimum Thread Depth3=Taper Pipe ThreadSTANDARDNUMBER:ISSUEDATE:REV:GLOBAL MANUFA
2、CTURING STANDARDSEXAMPLE OF FORD STANDARD PART NUMBERPURPOSE.FOR ORDERING A DOUBLE END THREAD PLUG GAUGEFOR A WORKPIECE SPECIFICATION OF 1/4 18 NPSF MINIMUM THREAD DEPTH 12 mm.1 OF 1DIMENSIONS IN mmPrinted copies are uncontrolled.DOUBLE END STEP LIMIT THREAD PLUG GAUGEwGT3FOR DRYSEAL USA STANDARD TA
3、PER PIPE THREAD N.P.T.F.RANGE UP TO 2 INCHESTAPERLOCK STYLETHE L1 THREAD PLUG MEMBER IS USED FOR CHECKING THE FUNCTIONALDIAMETER OVER THE HAND ENGAGEMENT OR L1 THREAD LENGTH, AND THETHREAD PLUG MEMBER CHECKS THE TAPER OVER THE FULL THREAD LENGTH.NOTE:AS A CHECKON PART THREAD THE L1 AND L3 GAUGES SHALL GAUGE THESAME WITH RELATION TO THEIR RESPECTIVE NOTCHES WITHIN 1/2 TURN.L1 AND L3This standard is issued to govern the requirements for a Double End Step Limit Thread Plug Gauge19991201
