For 3b
No other part numbers with same form, fit, and function found.
A gage used for the dimensional control of a specified internal thread. It consists of a gaging member or members and handle.
Classification: Gauges for measuring length
NSN 6105-01-189-9972
NSN 7035-01-559-4016
NSN 7035-01-034-4443
NSN 6650-01-217-0303
NSN 5960-01-009-5983
NSN 6620-00-581-8984
NSN 6650-00-063-4484
NSN 5950-01-290-4645
NSN 5965-01-299-7294
NSN 6135-00-182-7008
NSN 5999-01-597-0754
NSN 6220-01-391-8687