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 6145-00-613-8489
NSN 5945-00-187-7764
NSN 5915-01-554-8852
NSN 7035-01-187-0266
NSN 5910-00-038-6902
NSN 5990-01-575-3275
NSN 6135-01-493-5750
NSN 6150-00-479-2976
NSN 6685-01-487-4209
NSN 5910-01-139-1580
NSN 5965-01-496-4765
NSN 5910-00-583-0316