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 5999-01-350-2416
NSN 4140-00-879-0862
NSN 5930-01-477-7689
NSN 6135-01-294-2131
NSN 6320-01-393-7022
NSN 4140-01-174-0646
NSN 5915-01-066-7354
NSN 6105-01-235-7448
NSN 5855-01-013-6864
NSN 5999-00-491-2794
NSN 5950-00-924-9993
NSN 6620-01-207-0667