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 5975-00-288-5877
NSN 5990-01-606-9305
NSN 6685-01-282-3017
NSN 6130-00-828-5635
NSN 5999-01-576-6401
NSN 6130-01-258-5892
NSN 5975-01-319-8212
NSN 5895-01-145-5204
NSN 6645-01-296-9769
NSN 5985-00-354-3295
NSN 5930-00-160-4880
NSN 2925-01-424-0235