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 5835-00-564-0057
NSN 4140-01-459-9275
NSN 5999-01-508-6817
NSN 6645-01-267-5505
NSN 5935-01-168-4191
NSN 5920-01-426-8517
NSN 5996-01-406-4035
NSN 5996-01-066-9003
NSN 6145-00-730-3933
NSN 6105-00-234-7787
NSN 5985-01-560-6870
NSN 6150-01-145-6278