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 5990-00-806-3556
NSN 6105-01-583-5526
NSN 5975-01-384-7110
NSN 6105-01-057-2794
NSN 6685-01-268-1465
NSN 5835-01-519-2916
NSN 5998-00-014-6407
NSN 6150-01-510-2736
NSN 6620-01-189-8153
NSN 5920-00-387-5312
NSN 5965-01-045-0247
NSN 6130-00-941-1292