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 5945-01-507-8117
NSN 6685-00-431-2260
NSN 6130-01-473-7460
NSN 5975-00-269-4365
NSN 5965-01-106-1431
NSN 5960-00-899-0942
NSN 5975-00-795-9368
NSN 6110-01-125-6654
NSN 5855-00-688-9954
NSN 6145-01-212-3528
NSN 5855-00-548-4742
NSN 5990-00-010-1413