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 6240-01-608-4990
NSN 2925-00-950-2516
NSN 5965-00-543-1837
NSN 6105-00-079-2409
NSN 5990-01-363-3370
NSN 6135-00-170-8819
NSN 5998-00-739-8930
NSN 5935-00-009-6728
NSN 5975-00-768-7518
NSN 6240-01-197-8491
NSN 5965-01-181-3140
NSN 5855-01-499-3576