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 5985-00-301-2982
NSN 6645-00-004-8628
NSN 5999-01-441-5438
NSN 5930-00-506-4173
NSN 5835-01-013-9321
NSN 6150-00-799-4528
NSN 4140-01-093-8110
NSN 2925-00-327-6215
NSN 6620-01-226-4065
NSN 5945-01-406-3200
NSN 6650-01-343-8008
NSN 6150-01-147-4604