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 5915-01-169-4091
NSN 6135-01-508-6083
NSN 5895-00-554-4573
NSN 6320-01-443-3826
NSN 7035-01-522-9822
NSN 5920-01-183-7938
NSN 5998-01-470-2395
NSN 5920-01-189-5086
NSN 5945-00-708-7575
NSN 5930-00-265-6293
NSN 5998-00-927-8010
NSN 6610-00-184-0833