Barrel rockwell c scale 38 min and @rockwell c scale 42 max
A nut of cylindrical or partly cylindrical cross-section with integral threads perpendicular to the axial centerline. Ends may be flat or flanged. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, round.
Classification: Nuts of iron or steel
NSN 5895-01-200-1945
NSN 5905-01-227-7009
NSN 5930-01-659-7759
NSN 5996-01-382-2114
NSN 5999-01-644-9153
NSN 6105-01-641-3334
NSN 6130-01-578-7941
NSN 5905-01-293-3138
NSN 6645-01-400-1383
NSN 6220-01-145-1183
NSN 6145-00-177-4731
NSN 5925-00-238-6376