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 5925-00-165-0371
NSN 6610-00-336-2404
NSN 6620-01-162-2839
NSN 5905-01-578-0708
NSN 6135-01-220-7193
NSN 5975-00-244-6480
NSN 5915-00-135-5995
NSN 6320-01-371-3047
NSN 5910-01-452-7054
NSN 5855-01-079-8716
NSN 5950-00-233-6707
NSN 4140-00-900-1816