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 5895-01-019-0412
NSN 5945-01-370-4784
NSN 4140-01-298-5651
NSN 5905-01-620-3226
NSN 6150-00-089-7267
NSN 5835-01-107-8600
NSN 6650-01-068-2258
NSN 5835-00-707-6266
NSN 4140-01-132-4527
NSN 5999-00-199-0213
NSN 5855-00-451-6155
NSN 5998-01-352-1911