3/8 - 16

G.A. CO.

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

3/8 16 NC DOUBLE LEAD LEFT HAND THREAD RING GAGE .375 GO ONLY P.D. = .3294 L.H.

HURON

3/8 16 UNC 2A BEFORE PLATE THREAD RING GAGE .375 NO GO ONLY P.D. = .3279 B/P P.P

M & J Tooling LLC

3/8 16 NC 2 LEFT HAND DOUBLE LEAD THREAD RING GAGE .375 NO GO ONLY P.D. = .3344

PRATT & WHITNEY

3/8 16 NC UNDER BASIC THREAD RING GAGE .375 GO ONLY P.D. = .3324 UNDERSIZE TOOL

FLAN-CO

3/8 16 UNC 2A PREPLATE THREAD RING GAGES .375 GO NO GO PD'S = .3323 & .3283 B/P