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 6620-00-613-3023
NSN 5990-00-132-6430
NSN 6150-01-410-8566
NSN 5930-01-555-6963
NSN 6645-01-588-5591
NSN 5975-00-052-4591
NSN 6620-00-816-9755
NSN 5975-00-129-6056
NSN 5999-01-593-6481
NSN 5835-01-462-5983
NSN 5990-00-011-2994
NSN 6145-00-178-8830