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 6130-01-545-6811
NSN 2925-00-105-3907
NSN 5935-00-022-5794
NSN 6220-01-645-4369
NSN 4140-01-491-9655
NSN 5975-01-351-2084
NSN 4140-01-384-3890
NSN 5965-00-716-7078
NSN 6620-01-364-0195
NSN 5950-00-626-8926
NSN 5925-01-514-0274
NSN 7035-01-512-7776