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 6650-00-820-4577
NSN 2925-01-030-6580
NSN 4140-00-820-1173
NSN 5925-01-462-5933
NSN 6610-01-289-0847
NSN 5945-00-042-5553
NSN 5965-01-293-0121
NSN 5835-01-336-1153
NSN 6645-00-620-9294
NSN 5996-01-082-2934
NSN 5835-00-617-3578
NSN 5950-01-628-4557