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 5999-00-136-5874
NSN 5855-01-464-3152
NSN 6620-00-415-2768
NSN 5999-00-429-1915
NSN 6145-00-977-6160
NSN 5998-00-236-4895
NSN 5998-01-276-3720
NSN 5910-00-901-1110
NSN 6110-01-605-0883
NSN 6650-01-281-4651
NSN 5920-01-647-6948
NSN 6135-00-546-6273