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 6135-01-210-8715
NSN 5999-00-375-6147
NSN 4140-00-891-3009
NSN 6650-01-485-3444
NSN 5950-00-235-0107
NSN 5990-01-232-9008
NSN 6240-00-322-9928
NSN 7035-00-455-7666
NSN 5990-01-185-5346
NSN 6610-01-543-8567
NSN 5945-00-903-7498
NSN 5920-00-764-4061