MIL-STD-117 Revision B, March 15, 1963
GAGES,RING,THREAD NOT GO
Includes all amendments and changes through Cancellation Notice 1, April 16, 1997
Additional Comments: CNCL NO S/S
The standard covers pertinent design data and Mil-Std Part Numbers for American Gage Design Standard. L0 (not go), right-hand thread ring gages for the inspection of the minimum limits of unified Standard classes 1A, 2A, 3A and American National Standard classes 1, 2, 3 external threads.
This standard also covers pertinent design data and Mil-Std Part Numbers for the applicable American Gage Design Standard truncated thread setting plug gages and go and not go plain plug acceptance check gages. The go and not go plain plug acceptance check gages are only applicable to not go thread ring gages having a minor diameter below .375 inch.
The minimum limits of certain standard external threads are identical for both the Unified Standard and American National Standard thread systems for the same nominal size, threads per inch, and class of fit. In these particular cases one part number is applicable and the thread designation is combined.