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 6240-01-641-9347
NSN 5960-01-599-9821
NSN 6150-01-406-3907
NSN 5945-00-457-0005
NSN 5985-01-173-0113
NSN 5985-01-487-1313
NSN 5965-00-237-8049
NSN 5965-01-136-5657
NSN 5935-01-589-5672
NSN 5965-01-348-0079
NSN 2925-01-326-0908
NSN 5996-00-102-4497