F118 engine qualified
A nut having one convex, spherical bearing surface, with 12 drive points, 24 sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5895-00-139-1403
NSN 6105-00-142-5901
NSN 6320-00-270-8222
NSN 6645-01-064-3711
NSN 5999-01-219-3306
NSN 5905-00-844-0935
NSN 6105-01-476-8040
NSN 5975-01-616-8607
NSN 5835-00-368-4182
NSN 5930-01-025-3109
NSN 6685-00-776-4622
NSN 6130-00-713-2524