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 5950-00-081-2206
NSN 5965-01-271-0808
NSN 5915-01-350-7398
NSN 5965-00-973-9974
NSN 5985-01-221-7882
NSN 5925-00-798-6767
NSN 5935-01-562-4960
NSN 6620-01-633-5142
NSN 5945-01-194-7452
NSN 6220-01-184-5668
NSN 5835-01-424-0054
NSN 6130-01-641-1294