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 6320-01-506-9439
NSN 6620-01-564-7858
NSN 5985-01-397-6942
NSN 6110-00-466-1674
NSN 5985-00-495-0739
NSN 6685-01-215-1204
NSN 6110-00-659-3348
NSN 6150-01-395-4133
NSN 5925-01-400-3002
NSN 5990-00-683-1095
NSN 5950-00-912-5196
NSN 5960-01-589-6846