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 6110-01-102-8431
NSN 6220-01-346-1285
NSN 6685-01-471-8417
NSN 5950-01-435-3387
NSN 5998-00-497-7981
NSN 6645-01-116-2037
NSN 4140-00-834-5413
NSN 6130-01-170-9446
NSN 5855-01-078-4180
NSN 6685-01-301-1847
NSN 6105-01-318-4258
NSN 5930-00-309-5591