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 6145-01-572-2510
NSN 5905-01-419-5432
NSN 5945-01-545-8594
NSN 5975-01-222-2088
NSN 5950-01-565-8092
NSN 5999-00-914-5269
NSN 6320-00-593-0379
NSN 7035-00-529-3128
NSN 5985-00-897-1692
NSN 5915-01-406-3847
NSN 6110-01-128-5018
NSN 6110-01-190-8487