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 5998-01-592-1593
NSN 5965-01-595-5454
NSN 6130-00-553-1946
NSN 6135-01-461-2915
NSN 6110-01-532-3682
NSN 2925-01-381-5307
NSN 5935-01-146-5537
NSN 6620-00-899-0971
NSN 5999-01-657-2960
NSN 5985-01-462-0144
NSN 5965-01-386-2988
NSN 6145-00-596-8447