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 6150-00-085-7752
NSN 6240-01-374-1904
NSN 6145-01-202-9059
NSN 6220-01-138-7512
NSN 6320-01-302-5157
NSN 5996-01-157-7728
NSN 4140-01-278-5498
NSN 6130-00-927-1572
NSN 6130-01-525-6793
NSN 5935-01-530-6564
NSN 6650-00-775-6560
NSN 6110-01-526-2487