A nut having one convex, spherical bearing surface, with 12 drive points, 24 sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member.
NSN 6650-01-352-1659
NSN 6135-00-191-6444
NSN 5975-01-456-8227
NSN 6105-00-126-2229
NSN 6620-00-828-3842
NSN 6620-00-451-1460
NSN 5920-00-001-4314
NSN 6105-01-327-9407
NSN 6110-01-542-3864
NSN 6650-01-258-5871
NSN 5930-01-420-5087
NSN 5996-00-727-1470