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 5996-01-211-0208
NSN 6110-00-855-5695
NSN 5999-01-653-1611
NSN 5996-01-649-5616
NSN 5920-01-013-8594
NSN 6320-01-353-9753
NSN 5930-00-563-0497
NSN 6105-00-797-4045
NSN 5998-01-470-0291
NSN 5975-01-352-6449
NSN 6620-01-364-0195
NSN 5905-01-278-3395