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 5835-01-584-1827
NSN 6220-00-660-5539
NSN 5920-00-455-9743
NSN 6105-01-182-9517
NSN 6650-01-561-6149
NSN 6685-01-071-7016
NSN 4140-01-374-2210
NSN 5935-01-361-0415
NSN 6240-01-205-0005
NSN 6145-01-578-7748
NSN 5930-01-090-7686
NSN 6645-01-406-6077