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 5935-01-419-0125
NSN 6620-01-018-5874
NSN 5930-01-591-9593
NSN 5905-00-148-3776
NSN 6620-00-224-7739
NSN 5895-01-293-9704
NSN 5975-00-704-0334
NSN 6135-01-338-2281
NSN 6130-00-276-0658
NSN 5930-01-306-3405
NSN 5960-01-054-3752
NSN 5855-01-435-5548