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 5905-01-056-4534
NSN 5998-01-411-5496
NSN 6130-01-481-3888
NSN 5915-01-056-6287
NSN 5998-00-470-8226
NSN 5915-01-600-5446
NSN 5990-01-023-3307
NSN 5999-01-047-2569
NSN 5998-01-551-3843
NSN 6145-01-401-3713
NSN 5965-01-418-1760
NSN 5965-01-162-8689