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.
NSN 6130-01-208-2735
NSN 5930-01-444-1835
NSN 5910-01-316-3884
NSN 5915-01-565-8100
NSN 5990-00-202-5127
NSN 5999-00-453-3262
NSN 5945-01-340-0255
NSN 6610-00-985-4766
NSN 6240-00-266-6258
NSN 5985-01-197-0548
NSN 6645-01-413-3965
NSN 5915-01-540-9027