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 6650-00-248-4895
NSN 5950-00-358-1140
NSN 4140-01-072-6596
NSN 5920-01-144-9826
NSN 5975-00-189-0857
NSN 5915-01-428-4187
NSN 6610-00-676-8419
NSN 6135-00-603-4859
NSN 6145-01-074-1581
NSN 6130-00-553-6253
NSN 2925-01-446-6976
NSN 4140-01-532-7021