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 6240-00-263-0549
NSN 5910-00-789-5523
NSN 6320-01-631-7828
NSN 6130-01-634-0603
NSN 5960-00-816-9040
NSN 5855-01-372-9728
NSN 5895-00-879-7671
NSN 6145-01-413-3286
NSN 6620-00-783-9560
NSN 5950-01-104-0427
NSN 6685-00-480-9200
NSN 5990-01-498-0641