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 4140-00-958-1252
NSN 5835-01-263-1293
NSN 6685-01-381-9304
NSN 6685-01-195-2129
NSN 4140-01-220-2137
NSN 5965-00-067-7393
NSN 6620-01-302-9729
NSN 6320-01-489-6044
NSN 5905-01-078-7238
NSN 5960-01-386-5770
NSN 5920-01-335-8928
NSN 5975-01-619-0947