A nut having 12 drive points and 24 sides. The bearing surface may be washer faced. An integral locking feature is incorporated in the design of the head or in the threads.
NSN 6110-00-031-2822
NSN 5935-00-583-9991
NSN 5975-01-643-9893
NSN 4140-00-318-0159
NSN 5996-01-588-1820
NSN 6135-01-156-4627
NSN 5835-01-227-4752
NSN 7035-01-476-7787
NSN 7035-00-155-9513
NSN 6220-01-318-0969
NSN 7035-01-297-5877
NSN 7035-01-556-6860