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 6650-00-283-0978
NSN 6240-00-364-0850
NSN 5895-01-018-9757
NSN 5915-00-725-6522
NSN 5985-00-498-9987
NSN 5915-00-494-3696
NSN 5895-01-033-8292
NSN 5990-00-435-5920
NSN 5985-01-586-6700
NSN 5915-00-990-8365
NSN 6645-00-936-8120
NSN 6620-01-310-2103