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 5920-01-432-1155
NSN 6320-01-547-9877
NSN 5965-01-381-2998
NSN 6145-01-020-1787
NSN 6650-01-535-1120
NSN 6135-01-411-3212
NSN 6135-00-967-3112
NSN 5895-01-498-3072
NSN 6220-01-273-3896
NSN 5915-01-231-6847
NSN 6150-01-436-3617
NSN 5945-01-237-2433