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 5920-01-481-0421
NSN 6220-01-544-4837
NSN 5920-01-382-5323
NSN 6610-01-371-3006
NSN 4140-00-432-0456
NSN 5930-01-119-9223
NSN 5998-01-271-7543
NSN 5925-01-055-3868
NSN 5925-00-691-2434
NSN 6685-00-175-8227
NSN 5945-01-453-6519
NSN 5945-00-145-9802