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 5999-01-175-0287
NSN 6645-00-805-0066
NSN 6145-01-655-2334
NSN 5985-00-001-4636
NSN 6105-00-461-5962
NSN 6135-01-026-9960
NSN 6610-01-180-6111
NSN 6620-01-141-5747
NSN 4140-01-212-8286
NSN 6145-01-487-2564
NSN 6135-00-816-9052
NSN 5999-01-084-5109