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 6620-00-188-2560
NSN 6240-00-467-7295
NSN 5990-01-388-9264
NSN 6320-01-252-2307
NSN 2925-01-471-3365
NSN 5998-01-381-6469
NSN 5905-00-722-8929
NSN 5930-01-400-6126
NSN 5990-01-041-8008
NSN 5999-00-104-5582
NSN 6685-01-054-6892
NSN 5835-00-309-0311