F118 engine qualified
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 5998-01-410-8249
NSN 6145-00-468-8534
NSN 5855-01-535-7127
NSN 5855-01-083-9053
NSN 6135-01-525-6979
NSN 2925-01-239-6044
NSN 4140-01-465-0852
NSN 5950-01-364-0800
NSN 6135-00-738-5571
NSN 6110-01-441-8553
NSN 5975-01-252-9763
NSN 5996-01-309-3085