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 4140-01-367-3638
NSN 2925-00-081-6835
NSN 5990-01-133-0351
NSN 5895-01-623-1295
NSN 5985-01-142-2821
NSN 5999-00-856-7712
NSN 5985-00-285-8466
NSN 6130-01-555-9864
NSN 5998-01-030-9114
NSN 5965-01-210-7784
NSN 5855-00-962-5792
NSN 5910-00-408-1439