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 5905-00-052-4899
NSN 7035-01-094-2365
NSN 4140-00-205-0853
NSN 5945-01-654-9004
NSN 6150-00-976-5441
NSN 5960-01-489-1510
NSN 5855-01-223-0833
NSN 4140-00-967-7969
NSN 6130-00-306-3159
NSN 5855-01-458-2229
NSN 5985-01-579-5006
NSN 5915-01-438-6411