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 6645-01-077-4934
NSN 6145-01-244-1205
NSN 6240-01-028-6737
NSN 5985-00-578-7740
NSN 6685-01-399-8584
NSN 5905-01-011-6997
NSN 6620-01-454-5717
NSN 5855-00-921-6589
NSN 5905-01-250-0818
NSN 5965-01-362-4031
NSN 6685-01-136-9834
NSN 6685-00-939-8353