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 6620-01-383-7519
NSN 6610-01-500-5046
NSN 6620-01-551-7071
NSN 6610-01-362-8686
NSN 5935-01-505-0162
NSN 5999-01-547-2643
NSN 5945-01-326-4412
NSN 6320-01-334-5305
NSN 5920-00-339-0338
NSN 2925-01-653-4657
NSN 6220-01-105-8200
NSN 6110-00-155-8055