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 6150-01-586-9988
NSN 2925-01-052-0636
NSN 5855-01-456-8535
NSN 6650-01-422-3395
NSN 5998-01-357-1707
NSN 5960-00-372-4876
NSN 5998-01-647-0078
NSN 6105-01-020-3558
NSN 5990-01-425-2175
NSN 2925-01-106-3552
NSN 6135-01-148-8531
NSN 5905-00-611-2853