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 6320-01-440-4982
NSN 5996-01-177-2848
NSN 5920-00-815-5599
NSN 5999-01-643-5495
NSN 5895-00-131-6720
NSN 6620-01-038-3242
NSN 6645-01-322-3124
NSN 5985-01-519-0247
NSN 5950-00-455-7759
NSN 6650-00-891-9850
NSN 6105-01-587-2068
NSN 5990-01-633-9503