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 6610-01-311-1760
NSN 5990-01-234-4607
NSN 4140-01-495-0865
NSN 5910-01-227-1041
NSN 6610-00-022-0111
NSN 6610-01-440-0604
NSN 6220-00-436-0692
NSN 5935-01-360-0247
NSN 5925-01-585-0169
NSN 5910-00-739-3370
NSN 5930-01-437-8024
NSN 5999-01-257-3006