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 5905-01-441-9402
NSN 5945-00-474-2186
NSN 5965-00-823-8623
NSN 6150-01-441-2254
NSN 5905-00-468-4248
NSN 5920-01-188-8833
NSN 4140-01-552-5696
NSN 5855-00-973-5717
NSN 5920-01-076-2679
NSN 6145-00-233-6010
NSN 5960-00-923-5047
NSN 5990-00-170-4239