Set Plug Gages for Calibrating Ring Gages

B.C. MACDONALD

1/2 32 UN 2A SET THREAD PLUG GAGE .5 GO NO GO P.D.'S = .4787 & .4752 CHECK N-2A

GAGE ASSEMBLY CO.

1/2 12 UNS 3A QUAD LEAD SET THREAD PLUG GAGE .5 GO NO GO PDS .4459 & .4419 4-STR

PRATT & WHITNEY

3/4 10 NC 3 SET THREAD PLUG GAGE .75 .750 .7500 GO NO GO P.D.'S = .6850 & .6805 - JF2630MU

1/2 28 UNEF 2A SET THREAD PLUG GAGE .5 GO NO GO P.D.'S = .4757 & .4720 NEF-2A-W

HANSON WHITNEY

3/8 16 NS QUAD LEAD SET THREAD PLUG GAGE .375 GO NO GO PDS = .3344 & .3312 4-STR

TAFT-PEIRCE

5/16 18 NC SPECIAL SET THREAD PLUG GAGE .3125 GO NO GO P.D.'S = .2795 & .2782

SHEFFIELD

1/4 20 NS SPECIAL SET THREAD PLUG GAGE .25 GO NO GO P.D.'S = .2221 & .2208 CHECK

GAGE ASSEMBLY CO.

1/4 28 UNF 2A SPECIAL SET THREAD PLUG GAGE .25 GO NO GO PD'S = .2256 & .2235 SPL

GTD

3 48 UNC 3A SET THREAD PLUG GAGE #3 .099 GO NO GO PDS= .0855 & .0838 NC-3A CHECK

PRATT & WHITNEY

3/8 24 NF SPECIAL PITCH SET THREAD PLUG GAGE .375 GO NO GO P.D.'S= .3523 & .3491

GAGE ASSEMBLY CO.

5/16 18 UNC 3A SPECIAL QUAD LEAD SET THREAD PLUG GAGE .3125 GO NOGO= .2760 .2734

G.A. CO.

5/16 18 NC 3 4-START SPECIAL SET THREAD PLUG GAGE .3125 GO NO GO = .2734 & .2704