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 6645-01-195-0561
NSN 6320-00-450-7014
NSN 5990-00-919-4653
NSN 6145-01-657-3777
NSN 5960-01-641-5493
NSN 6610-01-287-9814
NSN 5920-01-062-7106
NSN 5925-00-785-6260
NSN 5965-00-475-2759
NSN 6150-00-231-0729
NSN 6135-01-625-0233
NSN 5855-01-088-4699