A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 6320-00-036-3688
NSN 5990-01-537-4815
NSN 5910-01-308-4028
NSN 5990-01-272-4091
NSN 5945-01-634-0588
NSN 5996-00-447-1810
NSN 6150-00-456-0775
NSN 6650-01-057-9178
NSN 6130-01-447-2797
NSN 5910-00-699-0069
NSN 5965-01-329-7890
NSN 6240-00-187-4306