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 4140-01-177-0142
NSN 5935-01-027-7898
NSN 6685-01-046-4731
NSN 6130-01-540-5244
NSN 5920-01-348-5280
NSN 5990-01-463-5400
NSN 5985-01-393-5786
NSN 5975-00-052-8095
NSN 5985-00-923-1369
NSN 5915-01-112-1237
NSN 6130-00-173-2858
NSN 5960-00-438-9568