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 5920-01-349-0012
NSN 6130-01-024-9968
NSN 5950-01-020-6008
NSN 4140-00-635-6257
NSN 6150-00-188-2958
NSN 5905-01-534-7894
NSN 5905-01-073-9150
NSN 5965-01-460-9743
NSN 5965-00-568-5802
NSN 6645-01-484-9671
NSN 6645-01-141-4425
NSN 5935-00-116-9026