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 6220-01-202-7954
NSN 5985-01-571-0364
NSN 6645-01-559-8314
NSN 6145-01-185-7803
NSN 5930-01-450-2019
NSN 6135-01-467-5100
NSN 5998-00-989-4829
NSN 5920-01-356-0431
NSN 5855-01-462-5150
NSN 5905-01-397-9853
NSN 5985-01-260-1880
NSN 5965-01-633-8849