2 drive points, at 180 degree angle have been omitted
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 5999-01-055-7498
NSN 5910-01-403-2812
NSN 6645-01-629-9657
NSN 5998-00-286-3590
NSN 5915-01-361-1220
NSN 7035-01-324-1247
NSN 7035-01-423-8343
NSN 5990-01-052-1987
NSN 5895-01-564-4541
NSN 6620-01-449-8743
NSN 5985-00-051-7499
NSN 6220-00-412-2741