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 6220-00-625-8554
NSN 6685-01-278-8376
NSN 6610-01-628-6044
NSN 5925-00-284-3726
NSN 5895-01-575-2951
NSN 6220-01-137-2848
NSN 5998-01-361-8532
NSN 6105-01-524-9132
NSN 6645-00-498-6869
NSN 6130-01-575-0383
NSN 6685-00-614-4621
NSN 5930-01-424-7209