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 5930-01-258-4092
NSN 4140-01-194-4101
NSN 6650-01-581-3614
NSN 5910-01-138-5209
NSN 6110-01-615-7761
NSN 2925-01-455-1270
NSN 6130-01-627-9734
NSN 2925-01-495-2690
NSN 5990-01-426-7350
NSN 5965-00-230-4162
NSN 6645-01-315-6079
NSN 5985-01-173-7625