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 5945-01-262-9640
NSN 7035-00-800-0770
NSN 6145-01-577-8955
NSN 5999-00-456-0603
NSN 6610-01-505-6767
NSN 5855-01-252-5424
NSN 6620-01-098-9866
NSN 5985-01-148-5837
NSN 7035-01-631-5567
NSN 6135-01-139-1700
NSN 5930-00-775-4044
NSN 5930-00-259-7150