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 5905-00-974-6616
NSN 6685-00-374-5082
NSN 5835-01-564-3486
NSN 5950-00-926-3304
NSN 6130-00-737-0459
NSN 5910-00-932-4455
NSN 6645-01-595-7428
NSN 6620-01-606-8964
NSN 6240-01-013-8895
NSN 5935-01-317-4559
NSN 6220-00-727-5274
NSN 5925-01-430-5306