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 6620-00-140-8644
NSN 6240-01-384-3887
NSN 5935-00-215-8672
NSN 5905-01-422-9484
NSN 6685-00-038-7886
NSN 5930-01-293-1297
NSN 5996-01-338-8848
NSN 5930-00-655-1514
NSN 6105-01-129-0287
NSN 5985-01-054-6697
NSN 6150-01-318-1782
NSN 6130-01-455-7828