Inch

S.W.G. CO.

3" 24 N 3 THREAD RING GAGE 3.0 GO ONLY P.D. = 2.9729 N-2 N-3 INSPECTION 3.00

S.G. CO.

1 3/4 16 UN 2A THREAD RING GAGE 1.75 NO GO ONLY P.D. = 1.7025 N-2A INSPECTION

S.G. CO.

1 1/4 24 UNS 2A THREAD RING GAGE 1.25 GO ONLY P.D. = 1.2216 NS-2A INSPECTION

ALAMEDA

7/8 16 UN 2A THREAD RING GAGE .875 GO ONLY P.D. = .8329 N-2A .8750-16 INSPECTION

5/16 18 UNC 3A LEFT HAND THREAD RING GAGES .3125 GO NO GO PDS = .2764 & .2734 LH

SHEFFIELD

6 40 UNF 3A LEFT HAND THREAD RING GAGES #6 .138 GO NO GO PD'S = .1218 & .1198 LH

G.A. CO.

3/8 16 ACME 4G TRIPLE LEAD THREAD RING GAGES .375 GO NO GO = .3414 & .3377 NA-4G

SHEFFIELD

1" 14 UNF 3A THREAD RING GAGES 1.0 GO NO GO P.D.'S = .9536 & .9494 NF-3A 1.00

G.A. CO.

1 1/16 20 UNJ 3A BEFORE PLATE THREAD RING GAGES 1.0625 GO NO GO= 1.0274 & 1.0233

HEMCO

3/8 12 ACME 4G TRIPLE LEAD THREAD RING GAGES .375 GO NO GO = .3309 & .3268 NA-4G

JOHN BATH CO.

3/4 28 NS 3 THREAD RING GAGE .75 NO GO ONLY P.D. = .7238 .750-28 INSPECTION TOOL

DETROIT

11/16 40 NS 3 THREAD RING GAGE .6875 NO GO ONLY P.D. = .6683 11/16-40 NS-3 TOOL