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 6105-01-452-3376
NSN 5998-01-020-8263
NSN 7035-01-642-2153
NSN 5930-01-085-9093
NSN 6620-00-035-5813
NSN 6240-01-160-7430
NSN 5835-01-012-1436
NSN 5990-00-045-7929
NSN 5930-01-551-9497
NSN 5998-01-379-1086
NSN 5905-01-583-8237
NSN 5920-01-278-9239