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 6610-01-217-4162
NSN 6650-00-981-9501
NSN 6240-00-412-5584
NSN 5985-00-279-1444
NSN 2925-01-312-9502
NSN 4140-00-936-5636
NSN 6220-01-476-8889
NSN 5925-01-143-7730
NSN 6620-01-221-2643
NSN 5915-00-284-8744
NSN 5998-00-351-3839
NSN 5915-00-967-9583