Chromic acid dipped
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 6320-00-521-9350
NSN 5920-00-721-0721
NSN 5999-01-393-0736
NSN 5998-00-974-6016
NSN 6650-01-559-3648
NSN 5985-01-574-3793
NSN 2925-01-292-9248
NSN 6320-01-082-2970
NSN 5960-00-848-1900
NSN 5855-00-631-4565
NSN 5920-00-988-5057
NSN 6130-01-094-7070