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 6320-01-185-3857
NSN 2925-01-113-6904
NSN 6620-00-841-0170
NSN 5935-01-414-3863
NSN 5950-01-403-2852
NSN 6620-00-551-9948
NSN 5985-00-308-6341
NSN 5999-00-008-8623
NSN 6130-01-500-9845
NSN 5915-01-146-8951
NSN 2925-01-408-6205
NSN 6645-01-567-8282