A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery.
Classification: Nuts of iron or steel
NSN 6620-01-415-1409
NSN 6610-00-671-8215
NSN 6150-01-088-6539
NSN 6650-00-578-6543
NSN 5910-01-514-8481
NSN 6135-01-550-2518
NSN 5855-00-118-8762
NSN 6220-00-079-4840
NSN 5965-00-006-8004
NSN 6135-01-648-0057
NSN 5835-01-525-3220
NSN 5999-01-514-6259