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 5910-00-269-4755
NSN 5905-00-928-2086
NSN 6240-00-617-1719
NSN 6110-00-704-1460
NSN 5960-01-467-0961
NSN 5999-01-427-3702
NSN 5910-00-433-3990
NSN 5910-01-571-8990
NSN 5915-01-063-8546
NSN 4140-00-816-8820
NSN 6240-01-187-6878
NSN 5960-01-575-7818