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 5855-01-066-4399
NSN 5945-01-497-1866
NSN 5855-01-059-2710
NSN 5930-01-517-0360
NSN 6645-01-189-6942
NSN 6240-00-314-8042
NSN 7035-00-782-7046
NSN 6685-00-455-9941
NSN 5925-01-450-6701
NSN 6150-01-391-6675
NSN 6150-00-133-1005
NSN 6145-01-173-5143