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 6645-01-554-0609
NSN 5855-01-167-2162
NSN 2925-01-643-2967
NSN 6110-01-165-3196
NSN 4140-00-942-7159
NSN 6645-00-616-1289
NSN 5950-00-372-5591
NSN 5835-00-113-6090
NSN 6650-01-062-0828
NSN 5920-01-412-1080
NSN 5998-00-270-8067
NSN 6650-01-010-4204