A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5895-00-890-0409
NSN 6620-01-359-3920
NSN 6220-00-084-4240
NSN 5950-01-164-6556
NSN 5930-00-100-0163
NSN 5905-01-062-2330
NSN 6650-01-023-7002
NSN 6220-00-419-0635
NSN 6610-01-212-4022
NSN 6650-01-310-3437
NSN 6610-00-081-2365
NSN 5910-01-025-3357