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 5990-00-633-2774
NSN 6150-00-191-9738
NSN 6220-01-544-1254
NSN 5855-01-122-3125
NSN 5950-00-816-9913
NSN 5996-00-186-8709
NSN 6650-01-481-8009
NSN 5910-01-502-9833
NSN 6685-01-338-1911
NSN 5895-00-079-3667
NSN 6220-01-219-9670
NSN 6650-00-800-4092