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 5985-00-716-6888
NSN 5990-01-268-2236
NSN 6150-01-270-8237
NSN 6620-00-009-0904
NSN 5855-01-288-6341
NSN 6620-01-350-5103
NSN 5945-00-865-1433
NSN 5910-01-451-0270
NSN 6650-01-164-5873
NSN 5965-00-518-0958
NSN 5910-01-413-9930
NSN 6145-01-311-2799