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 6135-01-260-1100
NSN 6320-01-100-7554
NSN 5990-01-134-2859
NSN 5999-00-161-3421
NSN 5999-00-456-4819
NSN 5998-00-479-3889
NSN 6130-01-059-0084
NSN 5990-00-813-9405
NSN 5935-00-639-1382
NSN 5950-00-927-2984
NSN 5920-00-246-5992
NSN 5930-00-633-8008