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 6645-01-314-2889
NSN 5910-00-451-2293
NSN 5835-00-483-4838
NSN 6135-01-079-7852
NSN 6130-01-017-5774
NSN 5998-01-285-5249
NSN 5930-01-399-7959
NSN 5965-01-227-9937
NSN 5985-01-329-0324
NSN 6650-01-005-8570
NSN 5910-01-633-9963
NSN 5895-01-550-8140