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 6685-00-918-1695
NSN 5855-00-053-3142
NSN 5990-00-719-4947
NSN 6220-00-224-5402
NSN 6620-01-542-2689
NSN 5990-01-063-2532
NSN 6610-01-397-6965
NSN 5985-01-654-2565
NSN 2925-01-643-8395
NSN 6685-01-468-5471
NSN 6620-01-209-6909
NSN 6240-01-539-6658