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 6645-01-352-0886
NSN 5965-00-173-4440
NSN 6145-01-412-7410
NSN 6130-00-082-1262
NSN 5996-01-295-7854
NSN 6220-01-247-4381
NSN 6150-01-118-6075
NSN 5920-00-221-4556
NSN 6220-01-502-8521
NSN 6685-01-295-1699
NSN 5915-01-322-1364
NSN 5910-00-405-4231