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 4140-01-624-3989
NSN 6240-00-880-1893
NSN 5998-01-385-1458
NSN 5999-00-394-6606
NSN 5920-01-425-2754
NSN 6135-00-315-1187
NSN 6610-01-513-0303
NSN 5920-01-444-4082
NSN 7035-00-616-4410
NSN 2925-00-422-5159
NSN 5930-00-332-4448
NSN 5895-00-436-2824