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 5999-01-051-9807
NSN 6145-00-141-8095
NSN 6110-00-636-1234
NSN 5975-01-371-3051
NSN 6645-01-531-4918
NSN 4140-01-420-8370
NSN 6320-01-272-7072
NSN 5835-01-478-9428
NSN 5945-01-100-3110
NSN 5895-00-350-5907
NSN 5930-00-395-4688
NSN 6240-00-989-1517