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 5935-01-391-4980
NSN 5905-01-522-7399
NSN 6130-01-550-9056
NSN 5930-01-290-8277
NSN 5996-01-146-2588
NSN 6145-01-261-5150
NSN 5999-00-800-3215
NSN 5910-01-578-6247
NSN 6645-01-215-0617
NSN 4140-01-533-3139
NSN 6620-01-374-5787
NSN 5975-01-488-8344