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 6130-00-343-1052
NSN 6240-01-352-3642
NSN 5925-01-252-8237
NSN 5998-01-460-0199
NSN 6620-01-594-9063
NSN 5910-01-197-7358
NSN 5915-00-518-4656
NSN 5998-01-207-0979
NSN 5925-00-960-0059
NSN 6145-01-175-2137
NSN 5999-01-507-3102
NSN 6645-00-469-5963