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 2925-01-415-2140
NSN 6130-01-560-7789
NSN 4140-00-905-6570
NSN 5895-01-371-3351
NSN 5960-00-099-9790
NSN 6150-01-212-9010
NSN 5915-00-615-6146
NSN 6645-01-436-7381
NSN 5990-01-341-5735
NSN 6105-01-100-0123
NSN 6320-01-585-8468
NSN 4140-00-307-2732