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 5965-01-492-0274
NSN 5895-01-391-5682
NSN 5905-00-554-8947
NSN 5915-01-134-5163
NSN 5950-01-190-3481
NSN 6150-00-014-6079
NSN 5925-01-529-8227
NSN 5996-01-291-3076
NSN 5985-01-218-2924
NSN 5996-01-601-1299
NSN 4140-01-160-8934
NSN 5990-00-111-3614