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 2925-01-251-2989
NSN 5930-01-194-4477
NSN 5925-01-602-0118
NSN 6135-01-235-4168
NSN 6150-00-252-8036
NSN 5999-00-087-6042
NSN 5998-01-534-9984
NSN 6130-00-737-0459
NSN 6130-01-352-4597
NSN 6145-00-370-1964
NSN 5998-00-456-0864
NSN 5835-01-089-1076