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 6645-01-510-3496
NSN 5915-00-970-1419
NSN 4140-01-634-0330
NSN 5855-01-602-8518
NSN 6130-00-025-9448
NSN 5945-01-597-7568
NSN 2925-01-608-1888
NSN 6135-01-341-3924
NSN 5965-01-237-3342
NSN 7035-01-541-9818
NSN 6620-00-454-3570
NSN 5930-01-425-3276