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 5920-01-032-0445
NSN 5996-00-667-4295
NSN 6685-00-227-6750
NSN 5920-01-599-4436
NSN 6320-01-345-5818
NSN 5895-01-287-5304
NSN 5985-01-310-7389
NSN 6220-01-628-4370
NSN 5990-01-649-0635
NSN 6130-01-650-6843
NSN 6240-01-310-8778
NSN 6220-01-438-6436