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 5895-00-133-7653
NSN 6220-01-059-1393
NSN 5975-01-412-6440
NSN 6620-00-018-2196
NSN 6130-00-630-1494
NSN 5915-00-010-8333
NSN 5895-01-145-7192
NSN 6240-00-087-6684
NSN 6150-01-462-4810
NSN 5835-01-218-5560
NSN 6145-01-383-4630
NSN 4140-01-338-2154