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 5930-01-634-0659
NSN 5960-00-840-5465
NSN 6620-00-602-2072
NSN 6110-01-396-9561
NSN 5990-01-134-2859
NSN 5996-00-615-9665
NSN 5935-01-160-7864
NSN 6220-01-185-4900
NSN 6220-01-601-4300
NSN 5965-01-261-4717
NSN 6105-00-556-8961
NSN 5999-01-203-4652