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.
NSN 5935-00-397-2224
NSN 6220-01-197-7680
NSN 6145-01-610-7670
NSN 6320-01-064-0372
NSN 5998-01-205-2034
NSN 5935-00-648-3298
NSN 4140-01-508-2365
NSN 5990-01-054-3332
NSN 5990-00-133-5395
NSN 5935-01-578-5826
NSN 6135-01-394-6731
NSN 6320-01-585-8468