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 5930-01-245-8525
NSN 6620-01-199-8580
NSN 5945-01-519-0210
NSN 5999-00-012-3071
NSN 6105-01-634-0322
NSN 6645-01-445-1408
NSN 6150-01-137-1749
NSN 5910-00-254-5449
NSN 6320-00-809-5744
NSN 6105-01-352-5788
NSN 6145-00-399-5201
NSN 6610-01-585-2222