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 6220-01-485-0333
NSN 5930-01-126-0066
NSN 5905-00-186-0942
NSN 5855-00-411-8688
NSN 6110-01-306-7811
NSN 5990-00-631-1617
NSN 6105-01-193-7386
NSN 6145-01-401-3713
NSN 5996-01-497-5835
NSN 5998-01-396-6208
NSN 6610-01-656-7878
NSN 6145-01-012-2823