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 6220-01-514-4203
NSN 5975-00-244-0049
NSN 7035-01-313-6973
NSN 5996-01-141-1080
NSN 6145-01-165-4386
NSN 5998-01-378-6895
NSN 6220-00-699-8105
NSN 6240-01-147-7494
NSN 5895-01-119-3942
NSN 5915-01-535-8516
NSN 5935-01-127-8767
NSN 5855-01-286-9928