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 6320-01-207-8133
NSN 6320-00-636-0922
NSN 6645-01-483-5519
NSN 5950-01-563-3890
NSN 5855-01-464-3152
NSN 5985-00-213-4365
NSN 5996-01-144-9523
NSN 5998-00-277-7552
NSN 6685-01-421-5743
NSN 5990-00-483-0482
NSN 6110-01-170-6874
NSN 5930-01-585-2997