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 6645-01-375-9702
NSN 6240-01-629-9175
NSN 6145-00-785-4112
NSN 6620-00-679-5830
NSN 5905-01-074-0146
NSN 6620-00-398-0320
NSN 5920-01-406-6637
NSN 6645-01-424-4667
NSN 4140-00-935-5360
NSN 6145-01-384-2519
NSN 5835-00-198-4936
NSN 6135-01-388-8376