Use j79-15 eng
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 5935-01-579-6713
NSN 2925-01-342-1712
NSN 5990-01-324-1204
NSN 6650-00-118-1937
NSN 6685-01-355-9322
NSN 5930-01-544-4797
NSN 6130-01-323-4425
NSN 6150-01-006-3235
NSN 6620-01-111-9064
NSN 2925-01-248-6028
NSN 4140-01-613-8430
NSN 5998-01-126-9912