3 1/2 - 6

PD

3 1/2 6 STUB ACME 2G THREAD PLUG GAGE 3.5 NO GO ONLY P.D. = 3.4735 3.50 3.500 - DW10498BHTX

PENNOYER DODGE

3 1/2 6 STUB ACME 2G THREAD PLUG GAGE 3.5 GO ONLY P.D. = 3.4500 3.50 3.500 CHECK - DW10490BHTX

HEMCO

3 1/2 6 STUB ACME 2G MOD MAJOR THREAD PLUG GAGE 3.5 GO NO GO = 3.4500 & 3.4735 - DW10069BHTX

3 1/2 6 UN 2B THREAD PLUG GAGE 3.5 GO NO GO P.D.'S = 3.3917 & 3.4042 INSPECTION