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 5965-01-444-1322
NSN 5835-01-449-7511
NSN 5965-01-273-3055
NSN 5990-01-379-2337
NSN 5855-01-152-8782
NSN 4140-00-999-2577
NSN 5998-01-012-9679
NSN 5915-01-460-5940
NSN 5910-00-988-6171
NSN 5915-01-377-3545
NSN 5835-01-416-6449
NSN 5998-00-691-6070