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 6220-00-272-7497
NSN 5975-01-458-6370
NSN 6135-01-657-0554
NSN 5975-01-413-0605
NSN 5990-01-061-5618
NSN 6135-00-660-8654
NSN 6135-00-050-4393
NSN 6610-01-177-5033
NSN 6105-00-325-3637
NSN 6650-00-915-8545
NSN 7035-00-193-2269
NSN 6135-01-260-7180