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 5965-00-549-0220
NSN 5945-00-456-1758
NSN 5925-00-710-6642
NSN 6685-01-458-9763
NSN 6650-01-376-6965
NSN 5910-01-495-1056
NSN 5905-00-237-2662
NSN 5975-01-295-2593
NSN 5999-01-054-5566
NSN 6145-00-481-8737
NSN 7035-01-472-1999
NSN 6220-01-179-6242