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 5965-01-227-1237
NSN 6240-01-371-6251
NSN 5935-01-257-4054
NSN 6110-01-541-1828
NSN 5999-00-293-4326
NSN 6145-01-120-0918
NSN 5965-01-425-1347
NSN 6145-01-647-7830
NSN 6105-01-415-5555
NSN 5960-01-139-5968
NSN 6110-01-243-5026
NSN 6150-00-578-7816