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 4140-01-203-9910
NSN 5915-00-730-4434
NSN 5996-01-472-2858
NSN 6150-00-777-5209
NSN 6610-01-406-4985
NSN 5996-01-273-5483
NSN 5925-00-529-0441
NSN 5990-01-150-7443
NSN 6240-00-290-4185
NSN 5905-00-950-6700
NSN 2925-00-477-2654
NSN 6620-01-624-3933