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 6650-01-391-7527
NSN 4140-01-454-0578
NSN 6220-01-317-2151
NSN 2925-01-568-3705
NSN 5835-00-233-6327
NSN 6685-00-612-7851
NSN 5935-01-590-8982
NSN 5895-00-492-4566
NSN 5930-01-365-5769
NSN 2925-01-091-4734
NSN 4140-00-360-2457
NSN 5855-01-291-6790