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 5975-01-338-5725
NSN 6220-01-283-0382
NSN 5935-01-351-6159
NSN 6110-01-647-7021
NSN 6150-00-087-9284
NSN 6620-00-986-9627
NSN 6645-01-209-6881
NSN 6620-01-075-5299
NSN 6220-01-166-4909
NSN 5945-00-124-4799
NSN 5920-01-634-0250
NSN 5925-01-310-4821