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 5990-00-978-4936
NSN 6610-01-655-8516
NSN 6135-01-210-8715
NSN 4140-00-983-8048
NSN 5965-00-125-6984
NSN 5920-00-915-1206
NSN 5910-00-937-0378
NSN 7035-01-411-6062
NSN 5855-00-494-9581
NSN 5985-00-107-2111
NSN 5975-01-458-7640
NSN 6320-00-445-1187