A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5990-00-428-1895
NSN 6130-01-508-3664
NSN 5999-00-044-4537
NSN 6220-01-438-2642
NSN 5895-01-633-7624
NSN 5985-01-474-9203
NSN 5835-01-310-8979
NSN 5920-01-477-8400
NSN 5990-01-565-2226
NSN 6650-01-497-1773
NSN 6145-00-600-6075
NSN 6645-01-651-9562