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 6320-00-521-9350
NSN 6610-00-292-5411
NSN 6240-01-607-6252
NSN 6685-01-481-5725
NSN 6145-01-065-7547
NSN 5998-01-586-9993
NSN 5910-01-520-8255
NSN 2925-00-802-9387
NSN 6685-00-391-5747
NSN 6130-01-631-5562
NSN 6135-00-756-6149
NSN 6220-01-124-7917