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 6110-01-534-1523
NSN 5925-00-862-6719
NSN 6320-01-512-2031
NSN 7035-01-048-6471
NSN 5999-01-094-7317
NSN 5905-00-283-7919
NSN 5965-00-119-6207
NSN 5999-01-113-7864
NSN 5925-00-992-4963
NSN 7035-01-245-7973
NSN 5945-01-307-7571
NSN 4140-01-608-3992