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 5895-01-449-2804
NSN 5915-01-350-2407
NSN 6150-00-850-7316
NSN 5835-00-707-6266
NSN 5895-00-593-8749
NSN 5950-01-386-6481
NSN 5905-01-084-9950
NSN 5990-00-149-8181
NSN 7035-00-465-3298
NSN 5855-01-449-4058
NSN 5990-01-565-2226
NSN 6620-01-590-7035