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 5945-01-641-2789
NSN 5905-01-419-9367
NSN 5920-00-893-4985
NSN 5915-01-300-4460
NSN 6130-00-246-6915
NSN 6110-01-113-4287
NSN 6685-01-334-6091
NSN 6645-01-389-1970
NSN 5999-01-010-1995
NSN 5920-01-020-7659
NSN 5835-00-155-1379
NSN 5999-00-269-5320