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 4140-00-205-0853
NSN 5855-01-333-0969
NSN 5925-01-097-7046
NSN 5925-00-700-8674
NSN 5855-00-149-0766
NSN 5915-00-846-0829
NSN 5895-01-061-3732
NSN 5965-01-104-5102
NSN 5990-01-607-3528
NSN 6110-01-646-0464
NSN 5965-01-142-8044
NSN 6220-00-654-7362