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 5925-00-275-7599
NSN 6220-01-629-9142
NSN 2925-01-505-1666
NSN 4140-01-203-2380
NSN 4140-00-567-9291
NSN 5835-01-390-4667
NSN 5945-01-137-1512
NSN 5975-00-724-3147
NSN 6620-01-628-0171
NSN 6105-01-649-9841
NSN 5945-00-081-9491
NSN 6105-01-541-4811