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 5910-00-063-8976
NSN 5996-01-271-9927
NSN 5975-00-324-2070
NSN 5999-00-209-6470
NSN 4140-00-069-5154
NSN 4140-01-147-4764
NSN 5905-01-088-7416
NSN 6150-00-522-4909
NSN 5975-00-596-2119
NSN 7035-01-091-7481
NSN 6150-01-278-4644
NSN 5999-01-174-1768