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 4140-01-089-3219
NSN 4140-01-476-2767
NSN 5950-00-703-5112
NSN 6685-00-317-2372
NSN 6150-01-422-3126
NSN 5895-00-509-9821
NSN 6150-00-459-3205
NSN 6685-00-844-2231
NSN 5960-01-231-9119
NSN 5835-01-111-0969
NSN 6685-01-160-5421
NSN 5935-01-648-2696