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 6650-01-555-8819
NSN 5985-01-431-7048
NSN 5999-01-322-7980
NSN 6320-01-449-1014
NSN 6650-01-456-6516
NSN 6240-00-838-9030
NSN 5915-01-057-0623
NSN 4140-01-384-3998
NSN 5985-01-566-7992
NSN 6110-00-596-9124
NSN 5835-00-221-6628
NSN 6145-01-555-7660