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 5895-00-755-4647
NSN 6135-00-862-5736
NSN 5855-01-506-6767
NSN 5930-00-269-2594
NSN 5855-01-660-5088
NSN 5895-01-344-2888
NSN 5990-00-059-2616
NSN 4140-00-846-4786
NSN 5975-01-651-4784
NSN 6105-01-650-8083
NSN 6320-01-202-8761
NSN 5895-01-412-8229