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 6645-00-216-6126
NSN 5855-00-167-7893
NSN 5920-00-199-9514
NSN 5905-00-511-6788
NSN 6610-01-463-8866
NSN 5920-01-591-2410
NSN 5920-01-123-8148
NSN 5895-01-612-5682
NSN 5998-01-170-1176
NSN 6650-01-024-9554
NSN 5915-01-201-2937
NSN 6320-01-498-4954