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 6650-01-392-5855
NSN 5915-01-618-4057
NSN 5965-00-223-6354
NSN 5835-00-198-4936
NSN 5996-00-348-3844
NSN 6135-01-125-4867
NSN 5895-01-403-2793
NSN 4140-01-329-4836
NSN 5985-01-101-2349
NSN 5999-01-089-1006
NSN 5895-01-531-2336
NSN 6610-01-187-8929