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 6320-00-994-0179
NSN 5975-00-073-5593
NSN 6650-00-509-5248
NSN 5996-00-823-9164
NSN 5915-01-223-8225
NSN 6145-01-645-0111
NSN 5930-00-966-4475
NSN 6220-01-502-9451
NSN 5960-01-304-3073
NSN 6645-01-365-8020
NSN 5835-00-939-7470
NSN 6645-01-571-1234