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 5920-01-063-5769
NSN 6685-00-558-0856
NSN 7035-01-226-8894
NSN 6130-01-020-6727
NSN 6145-01-261-5150
NSN 6645-00-376-4829
NSN 5920-00-504-0564
NSN 5950-01-220-3252
NSN 5950-01-092-1505
NSN 5835-01-436-6549
NSN 7035-01-582-6442
NSN 5925-01-393-1441