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 6135-00-686-4777
NSN 6220-00-299-7226
NSN 5996-01-212-2605
NSN 6240-00-334-6766
NSN 6650-01-624-4360
NSN 6620-00-826-7238
NSN 5910-01-276-9896
NSN 6650-01-611-4903
NSN 6240-01-020-9910
NSN 4140-00-985-0182
NSN 6320-01-357-0728
NSN 5925-01-607-0354