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 6320-01-195-5583
NSN 5855-01-551-7923
NSN 5985-00-927-6677
NSN 5950-00-851-3620
NSN 4140-01-199-9771
NSN 2925-01-210-6531
NSN 5990-01-642-5748
NSN 5945-01-019-5538
NSN 5965-00-253-1254
NSN 5960-01-278-9394
NSN 5835-01-371-8759
NSN 5999-01-634-0576