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 5999-01-090-1702
NSN 5920-01-555-1079
NSN 5925-01-314-9111
NSN 6130-01-251-6046
NSN 6685-01-224-7481
NSN 6130-01-517-8357
NSN 2925-01-423-8141
NSN 6130-00-419-1120
NSN 5950-01-121-5982
NSN 2925-01-027-1293
NSN 5998-01-222-5763
NSN 5835-01-055-2327