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 5895-00-262-4331
NSN 5996-00-961-6411
NSN 2925-00-684-7708
NSN 5835-00-561-9994
NSN 6320-00-925-0558
NSN 5930-00-862-0263
NSN 5975-01-297-3879
NSN 6685-00-924-2288
NSN 5930-00-969-3916
NSN 5895-01-388-0188
NSN 6240-00-151-7642
NSN 5930-01-245-2086