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 5990-01-126-5824
NSN 5990-00-582-0342
NSN 6150-01-332-8129
NSN 5915-00-466-1512
NSN 6105-00-421-5157
NSN 6105-00-809-1180
NSN 7035-01-150-6303
NSN 5998-00-964-3227
NSN 5925-00-216-8767
NSN 4140-01-237-8569
NSN 6150-00-460-2938
NSN 5998-01-062-7628