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 5920-01-550-8389
NSN 6650-01-153-8861
NSN 5965-01-367-7380
NSN 5950-00-785-8329
NSN 7035-01-296-4737
NSN 5915-00-816-7549
NSN 5835-01-004-8997
NSN 5975-01-233-0684
NSN 5960-01-423-1085
NSN 5965-00-275-0491
NSN 6610-01-461-8180
NSN 6610-01-428-3587