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 5985-01-513-9930
NSN 6320-00-456-2092
NSN 6135-00-660-8654
NSN 5910-01-421-4153
NSN 6110-01-202-0840
NSN 6620-01-129-2941
NSN 5920-01-431-7617
NSN 5935-00-153-3130
NSN 5855-01-594-2892
NSN 6105-01-250-7348
NSN 5920-01-188-8294
NSN 6105-01-501-8709