Slots in upper portion
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery.
Classification: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
NSN 6620-01-313-3755
NSN 5985-01-588-6005
NSN 6610-00-479-0681
NSN 6135-01-343-1592
NSN 6220-00-949-0024
NSN 5990-01-147-5225
NSN 5999-00-460-0767
NSN 6105-01-067-9320
NSN 5990-00-956-9130
NSN 5990-01-179-1000
NSN 4140-00-869-1435
NSN 6135-00-122-2420