A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5965-01-399-3321
NSN 4140-01-058-6602
NSN 5996-00-192-3597
NSN 4140-01-155-3101
NSN 5990-00-170-4239
NSN 5945-00-319-4774
NSN 5985-01-459-7886
NSN 5985-01-188-1237
NSN 5935-01-029-4750
NSN 5998-01-015-3193
NSN 5915-01-414-0049
NSN 5835-00-275-0584