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 4140-01-116-3138
NSN 6685-01-032-3384
NSN 6685-01-441-2936
NSN 5945-01-418-1762
NSN 6110-01-497-8051
NSN 5945-01-603-1019
NSN 6220-00-947-0265
NSN 6620-00-170-5296
NSN 5925-01-229-8659
NSN 5950-01-571-8560
NSN 5835-00-928-5717
NSN 7035-00-679-9027