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 6145-00-578-7522
NSN 5895-01-556-9736
NSN 5915-00-190-6940
NSN 4140-00-435-0436
NSN 5935-01-323-0843
NSN 6220-00-831-3777
NSN 6650-01-466-9503
NSN 6135-01-296-1860
NSN 6105-01-435-0226
NSN 6320-01-384-7079
NSN 5920-00-166-8812
NSN 2925-01-293-6266