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 4140-01-590-1632
NSN 5925-01-050-0484
NSN 5999-01-196-9496
NSN 6320-00-636-0922
NSN 5925-01-518-1198
NSN 5920-01-598-5972
NSN 5930-00-788-6193
NSN 5960-01-414-8918
NSN 5950-01-042-0589
NSN 6135-01-351-1131
NSN 5930-00-555-1866
NSN 5935-01-155-2513