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 6650-00-323-8150
NSN 5960-01-448-3497
NSN 6620-01-573-5794
NSN 6650-01-133-7806
NSN 5910-01-137-4948
NSN 5960-00-067-5784
NSN 6240-01-418-1871
NSN 5930-01-056-4621
NSN 5945-01-232-7772
NSN 5915-01-444-4069
NSN 6110-01-083-0646
NSN 5895-01-651-7701