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.
NSN 5905-01-606-7783
NSN 5960-00-717-1329
NSN 6685-01-112-0458
NSN 7035-01-209-0045
NSN 6105-01-014-4669
NSN 6620-01-440-3523
NSN 5999-01-619-6838
NSN 6110-01-328-8292
NSN 5965-01-267-5263
NSN 5835-01-399-5820
NSN 5998-01-297-0856
NSN 4140-00-395-7006