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 5930-00-731-6338
NSN 5985-01-141-6126
NSN 5930-01-197-1985
NSN 5996-01-589-6540
NSN 5965-01-169-1194
NSN 6105-01-598-4055
NSN 5855-00-174-3482
NSN 6145-01-524-7113
NSN 5985-01-036-9941
NSN 5990-01-337-4584
NSN 6105-01-601-6911
NSN 4140-00-449-1356