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 4140-01-363-8263
NSN 6645-00-947-0625
NSN 2925-00-211-4469
NSN 4140-00-179-0200
NSN 5960-01-641-5493
NSN 5905-01-296-0621
NSN 5895-01-391-6785
NSN 6220-01-017-5492
NSN 6145-00-884-8112
NSN 6105-01-135-4646
NSN 5925-00-553-9899
NSN 6610-01-553-4749