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 6240-01-038-6618
NSN 6150-00-188-9869
NSN 5835-01-073-2455
NSN 7035-00-500-7839
NSN 6105-01-226-9363
NSN 6610-01-128-7748
NSN 6240-01-436-9868
NSN 6240-01-123-9040
NSN 5935-01-442-2998
NSN 6110-00-827-0086
NSN 5930-01-628-6256
NSN 5835-01-527-2629