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 6320-01-054-3046
NSN 7035-01-380-6538
NSN 5930-01-294-2417
NSN 5905-01-268-2207
NSN 6645-01-417-7511
NSN 6110-01-364-7168
NSN 5965-00-070-8520
NSN 5945-01-116-6665
NSN 6620-01-602-8402
NSN 6650-00-537-6048
NSN 5990-00-950-6146
NSN 5910-01-647-1555