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 5945-00-276-9261
NSN 6135-00-753-2276
NSN 5920-00-246-5992
NSN 5910-00-827-1218
NSN 5985-01-391-9896
NSN 6130-01-563-6889
NSN 5935-01-035-0998
NSN 6685-01-462-1770
NSN 5960-01-068-0924
NSN 5998-01-152-2248
NSN 5996-01-383-7018
NSN 5910-01-225-0649