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 5999-01-005-7307
NSN 6645-01-632-1127
NSN 5975-01-519-3935
NSN 5975-01-535-0066
NSN 5965-01-213-7256
NSN 5960-00-477-6555
NSN 6240-01-179-4547
NSN 5935-01-495-4281
NSN 6130-00-273-1111
NSN 4140-01-200-5032
NSN 6135-01-100-3593
NSN 5999-01-158-0455