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 6105-01-259-8289
NSN 5895-01-430-2555
NSN 6240-00-128-0267
NSN 5855-01-260-7445
NSN 5910-01-055-6719
NSN 5910-00-795-8089
NSN 5925-00-557-4530
NSN 2925-00-617-0826
NSN 6130-01-203-5095
NSN 5985-01-456-8106
NSN 6135-01-215-1245
NSN 5930-01-273-2561