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 5965-01-481-2422
NSN 5990-01-180-7365
NSN 6620-00-481-4210
NSN 6620-01-288-8249
NSN 6320-00-228-5678
NSN 6110-00-959-6522
NSN 5895-00-404-2010
NSN 5960-00-160-2183
NSN 5990-01-529-7307
NSN 5925-00-418-3811
NSN 6650-00-372-6035
NSN 5915-00-675-2088