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 5895-01-388-8695
NSN 5996-01-123-9038
NSN 6110-00-480-7868
NSN 5910-01-443-3016
NSN 6130-01-610-0614
NSN 6150-00-913-4917
NSN 6105-00-295-2558
NSN 6620-01-514-2949
NSN 5998-00-443-6217
NSN 4140-01-478-2409
NSN 5965-01-026-9865
NSN 5925-01-143-2453