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 5996-00-408-3387
NSN 5960-01-632-6576
NSN 6145-00-789-3705
NSN 6620-01-160-0439
NSN 5950-01-080-8150
NSN 6620-01-338-8945
NSN 6650-01-496-2662
NSN 6645-01-573-7603
NSN 5905-01-480-9513
NSN 6620-00-333-9253
NSN 6105-01-374-2237
NSN 4140-01-340-2579