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 6110-00-108-6478
NSN 6145-00-069-8964
NSN 5925-00-007-3962
NSN 5930-01-054-4128
NSN 5950-01-585-7590
NSN 5925-01-357-7027
NSN 6645-00-720-3953
NSN 5925-01-187-7468
NSN 5930-01-297-4393
NSN 5935-00-928-1229
NSN 5855-00-466-2309
NSN 5950-01-282-2612