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 5895-01-211-6807
NSN 5905-01-618-5788
NSN 5905-00-013-9726
NSN 5999-01-533-4218
NSN 6110-01-312-4194
NSN 6135-01-309-2299
NSN 5835-00-155-1379
NSN 6620-01-488-6772
NSN 5855-00-631-4565
NSN 5855-00-156-5489
NSN 5975-01-424-5830
NSN 5998-01-650-8194