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 6145-00-058-8564
NSN 5895-00-188-6798
NSN 7035-01-323-0164
NSN 2925-00-284-1534
NSN 6610-01-272-9691
NSN 5975-01-535-8764
NSN 6145-01-151-4102
NSN 6135-01-202-8113
NSN 5835-01-281-7281
NSN 5930-01-062-0074
NSN 6150-01-408-7850
NSN 6220-01-357-3672