Slots in upper portion
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 5999-00-276-9299
NSN 5905-00-817-8702
NSN 5930-01-578-6275
NSN 6145-00-116-2939
NSN 6105-00-999-2654
NSN 6685-01-195-3360
NSN 5975-00-935-5946
NSN 5998-00-338-9158
NSN 5996-01-547-9155
NSN 5960-00-821-2937
NSN 5975-00-269-8391
NSN 4140-01-552-1394