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 5960-00-578-1920
NSN 5996-01-310-8683
NSN 5905-01-099-7336
NSN 5855-01-428-9456
NSN 5990-01-124-9063
NSN 7035-00-830-1235
NSN 5920-00-271-3217
NSN 6240-01-543-7055
NSN 5985-00-967-3808
NSN 6145-01-066-5079
NSN 6135-01-469-7574
NSN 5895-00-720-4148