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 5998-01-503-9606
NSN 6240-01-469-2957
NSN 6145-00-767-5716
NSN 6130-00-639-0666
NSN 5996-01-028-3027
NSN 2925-00-031-7435
NSN 4140-00-200-0970
NSN 6150-01-020-7881
NSN 5950-01-132-1618
NSN 5920-00-080-5827
NSN 6320-01-631-7828
NSN 5945-01-357-5841