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 5950-01-274-0319
NSN 6135-01-177-3552
NSN 6105-01-455-9212
NSN 5945-01-649-6830
NSN 5895-01-424-0116
NSN 2925-00-152-1825
NSN 5945-01-630-4629
NSN 5920-01-238-4983
NSN 5915-01-408-1918
NSN 5965-01-399-8454
NSN 5999-00-579-6058
NSN 5920-00-451-6847