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 6240-01-440-9827
NSN 5998-01-068-2670
NSN 5925-00-676-1797
NSN 6240-00-052-0786
NSN 6685-01-173-5618
NSN 4140-00-272-0943
NSN 6610-00-614-7943
NSN 5835-01-537-1228
NSN 5999-01-378-6856
NSN 5910-01-498-0289
NSN 6130-01-289-8056
NSN 5985-01-313-2432