Inch

GSG

2" 4 .250P .500L ACME 3G DBL LEAD THREAD RING GAGES 2.0 GO NO GO 1.8665 & 1.8555

G.A. CO.

1/2 20 UNF 3A SPECIAL THREAD RING GAGE .50 NO GO ONLY P.D. = .4643 1/2-20 UNF-3A

13/16 32 NS 2A THREAD RING GAGE .8125 NO GO ONLY P.D. = .7875 QUALITY INSPECTION

MERCURY

1 11/16 28 UNS SPECIAL THREAD RING GAGES 1.6875 GO NO GO P.D.'S= 1.6600 & 1.6550

HEMCO

3 7/8 16 UN 2A THREAD RING GAGES 3.875 GO NO GO P.D.'S = 3.8326 & 3.8267 HEMCO

WESTPORT

CALIBRATED 7/16 28 UNEF 2A THREAD RING GAGES .4375 GO NO GO PD'S = .4132 & .4096 - CAL-JF1406

PONAM

3/8 27 UNS THREAD RING GAGE .375 GO ONLY P.D. = .3440 INSPECTION TOOL 3/8-27

S.C.C.

1 1/4 8 UN 2A THREAD RING GAGE 1.25 NO GO ONLY P.D. = 1.1597 QUALITY INSPECTION

7/8 48 UNS 2A THREAD RING GAGES .875 GO NO GO P.D.'S = .8606 & .8574 INSPECTION

1/4 32 UNEF 3A THREAD RING GAGES .25 GO NO GO P.D.'S = .2297 & .2273 TOOL NEF-3A

SHEFFIELD

4 48 UNF 3A THREAD RING GAGE #4 .112 NO GO ONLY P.D. = .0967 QUALITY #4-48 TOOL

3 56 NF THREAD RING GAGE #3 .099 GO ONLY P.D. = .0874 QUALITY #3-56 SHOP TOOL