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 6105-01-187-5164
NSN 5935-01-473-9058
NSN 4140-01-562-0499
NSN 5996-01-495-0763
NSN 5930-01-055-5525
NSN 6130-01-653-4570
NSN 6320-01-202-8761
NSN 2925-00-115-5857
NSN 6130-01-491-8902
NSN 5910-00-522-3388
NSN 5975-00-989-2027
NSN 6650-00-035-9297