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 5975-01-648-2475
NSN 6240-01-068-3491
NSN 6130-00-140-4505
NSN 5985-00-974-0030
NSN 5920-01-107-9807
NSN 5855-01-409-1792
NSN 5910-01-004-1615
NSN 5920-00-350-6941
NSN 5985-00-445-5170
NSN 7035-01-118-9461
NSN 5998-01-253-0296
NSN 5915-00-891-1467