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 5925-00-576-8179
NSN 2925-00-156-0999
NSN 5835-01-511-5337
NSN 6320-00-977-3930
NSN 4140-01-204-5546
NSN 6105-01-049-8643
NSN 6685-01-063-7425
NSN 5905-01-555-4357
NSN 6650-01-382-3870
NSN 5915-01-590-6232
NSN 5935-00-014-1056
NSN 6620-01-611-7907