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 6130-01-157-3155
NSN 2925-01-261-0701
NSN 5930-00-721-3803
NSN 5920-01-447-4265
NSN 5990-01-309-0048
NSN 5855-01-550-5219
NSN 6320-00-098-2858
NSN 5996-00-960-7810
NSN 5960-01-265-0354
NSN 5910-00-681-7770
NSN 2925-01-368-5773
NSN 6105-00-770-0161