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 6650-01-451-1372
NSN 5895-01-182-4563
NSN 6130-00-789-1884
NSN 5920-01-484-9924
NSN 7035-01-069-3537
NSN 5990-01-118-8624
NSN 5915-01-225-7302
NSN 2925-00-513-6644
NSN 5998-01-223-9547
NSN 5905-01-188-7743
NSN 6610-01-457-1974
NSN 5925-00-984-9125