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 5935-01-460-0023
NSN 6145-00-100-4358
NSN 6220-00-595-6954
NSN 6620-01-359-9363
NSN 5990-01-147-5225
NSN 5895-01-577-9626
NSN 5835-00-180-7555
NSN 6610-00-241-2316
NSN 5905-00-768-7765
NSN 5985-01-634-0635
NSN 6650-01-642-5803
NSN 7035-01-391-9858