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 5996-01-446-0568
NSN 5960-01-342-1961
NSN 5975-01-550-9752
NSN 5975-01-454-5607
NSN 6130-01-452-3084
NSN 5915-00-918-3721
NSN 6610-01-249-3243
NSN 4140-01-364-1684
NSN 6220-01-147-5320
NSN 6105-01-032-1774
NSN 6150-01-158-5938
NSN 5996-00-272-2560