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 5910-01-441-8640
NSN 4140-01-298-5651
NSN 5910-00-902-8163
NSN 6135-01-056-4609
NSN 6685-00-916-5583
NSN 4140-01-651-2024
NSN 5925-00-964-3983
NSN 5998-01-343-5579
NSN 5965-00-431-2492
NSN 5999-00-182-6214
NSN 5915-00-753-7433
NSN 6145-00-578-3247