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 5915-01-652-5881
NSN 6220-01-474-0494
NSN 5990-01-234-4607
NSN 5835-01-109-4775
NSN 5945-01-252-0561
NSN 4140-00-931-1136
NSN 6110-00-248-7475
NSN 5996-00-156-5967
NSN 5990-01-010-5475
NSN 6130-01-161-5890
NSN 5965-00-433-6181
NSN 6320-01-243-2276