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 5835-00-833-7080
NSN 6110-01-493-8934
NSN 6610-01-424-0776
NSN 6685-00-198-5789
NSN 5915-01-250-8400
NSN 7035-00-679-9027
NSN 6105-01-453-7583
NSN 5930-01-359-0553
NSN 6220-01-437-9002
NSN 5999-01-014-0626
NSN 4140-01-114-9097
NSN 6135-01-222-5464