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 6105-01-088-8133
NSN 5895-01-281-8700
NSN 2925-01-472-4423
NSN 5855-01-109-6433
NSN 5920-01-603-0581
NSN 6135-00-793-1809
NSN 6610-01-229-3679
NSN 5950-01-426-3676
NSN 4140-01-520-4108
NSN 5935-01-434-2686
NSN 5990-00-146-3534
NSN 5915-01-071-3260