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 6220-00-061-1522
NSN 6610-01-278-2446
NSN 7035-01-245-7973
NSN 5895-01-224-7913
NSN 6240-00-007-8538
NSN 6145-01-056-8263
NSN 2925-01-545-2717
NSN 5960-01-347-0751
NSN 6320-01-446-6775
NSN 5985-01-300-7814
NSN 5930-01-514-5345
NSN 5835-01-424-0054