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 5960-00-420-0418
NSN 5855-00-149-0766
NSN 5950-01-467-9998
NSN 6105-01-322-6769
NSN 6110-00-643-4832
NSN 5998-01-313-2903
NSN 6220-00-116-5689
NSN 5996-01-384-4937
NSN 6650-01-242-8086
NSN 5895-01-129-8749
NSN 6145-01-246-0664
NSN 5895-00-719-7759