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 5905-01-287-7514
NSN 5920-01-149-4841
NSN 5945-01-285-7263
NSN 5960-01-032-4229
NSN 6220-00-301-2098
NSN 6320-01-350-0320
NSN 5905-01-241-4579
NSN 5905-01-533-8830
NSN 5975-00-317-5689
NSN 5905-01-185-8386
NSN 5965-01-420-6613
NSN 5905-01-623-0240