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 5945-01-383-2693
NSN 5998-01-317-4149
NSN 5990-01-157-0441
NSN 5920-01-367-4311
NSN 6240-01-431-5790
NSN 5990-01-149-0691
NSN 5855-00-494-9581
NSN 5999-01-430-2229
NSN 6135-01-417-6539
NSN 5945-00-610-7999
NSN 6645-00-451-3787
NSN 5998-00-486-5053