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 5930-00-437-2523
NSN 5998-01-435-3164
NSN 5915-01-528-6426
NSN 6320-01-443-8676
NSN 6135-00-209-6918
NSN 5935-01-209-6588
NSN 5998-00-163-1980
NSN 6240-01-510-3050
NSN 2925-01-129-1261
NSN 5960-00-781-4084
NSN 5985-00-062-2370
NSN 6650-01-090-6552