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 6105-01-608-3974
NSN 5985-01-440-7797
NSN 5920-00-962-3567
NSN 5998-01-392-0523
NSN 5920-00-212-7505
NSN 5998-01-382-4818
NSN 6105-01-537-7634
NSN 6150-01-089-8055
NSN 4140-01-063-7192
NSN 2925-01-658-9457
NSN 5905-01-055-9199
NSN 2925-01-560-0517