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 5996-01-391-7489
NSN 5990-00-173-9401
NSN 6135-01-025-8109
NSN 6685-01-195-7630
NSN 6645-00-815-7075
NSN 6320-01-592-4567
NSN 5920-01-313-3179
NSN 5950-01-172-3975
NSN 5945-01-432-9125
NSN 5975-01-513-9643
NSN 2925-01-152-8618
NSN 5920-01-254-4376