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 6320-01-201-2776
NSN 5998-00-770-5229
NSN 5998-01-344-6069
NSN 6645-01-234-2856
NSN 5960-01-481-3722
NSN 5915-01-552-7712
NSN 6240-01-579-1628
NSN 5855-00-405-4532
NSN 6620-01-209-6862
NSN 5960-01-530-0581
NSN 6135-01-653-1437
NSN 5895-00-433-2288