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 6650-01-425-7362
NSN 2925-00-486-8640
NSN 6610-01-278-9387
NSN 6130-01-017-3783
NSN 6645-01-531-8233
NSN 5990-01-376-8930
NSN 6135-00-299-6918
NSN 5945-00-660-6915
NSN 6220-01-497-4290
NSN 6645-01-613-7389
NSN 5915-01-125-6302
NSN 6320-01-547-9877