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 4140-00-918-2971
NSN 5930-01-460-2802
NSN 5895-01-143-7023
NSN 7035-00-215-3272
NSN 6320-00-483-0451
NSN 5998-01-408-8977
NSN 6620-01-313-3755
NSN 5835-01-378-6804
NSN 5930-01-413-3588
NSN 6110-01-306-7118
NSN 5915-01-123-9956
NSN 5935-01-200-5183