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 6650-01-630-2223
NSN 6650-00-824-5510
NSN 5925-00-892-8685
NSN 5945-01-415-0858
NSN 6620-00-770-9794
NSN 5930-01-071-1225
NSN 5855-00-174-3482
NSN 5990-00-765-1264
NSN 5975-00-005-7877
NSN 6620-00-963-1319
NSN 5910-01-262-6753
NSN 5945-01-366-4937