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 5965-00-434-7617
NSN 5998-00-340-3727
NSN 5910-00-449-5583
NSN 6610-01-139-6341
NSN 6110-01-348-2223
NSN 5960-01-385-4333
NSN 5915-00-881-5067
NSN 5999-01-378-4648
NSN 5895-00-296-3116
NSN 6320-00-115-0883
NSN 5855-01-421-7691
NSN 6650-01-556-6941