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 6150-01-459-3585
NSN 6685-01-653-6434
NSN 6135-01-437-6409
NSN 6220-00-220-5617
NSN 4140-00-106-6780
NSN 6130-01-639-8149
NSN 6105-01-371-3045
NSN 6220-00-243-4205
NSN 5999-01-517-8626
NSN 5930-00-728-4453
NSN 5930-00-137-4969
NSN 6620-01-320-7656