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 6240-01-184-6831
NSN 5855-00-110-9341
NSN 5975-01-602-8801
NSN 5915-00-740-4336
NSN 5985-01-340-3887
NSN 5930-00-216-7511
NSN 5905-01-541-0346
NSN 5930-01-067-6422
NSN 6610-01-419-0929
NSN 6610-00-078-5694
NSN 5925-00-875-0863
NSN 6685-00-890-5261