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 6220-01-223-2760
NSN 6105-00-988-2471
NSN 5960-00-413-8129
NSN 7035-01-555-8793
NSN 5935-01-276-8927
NSN 5950-00-503-9066
NSN 5985-01-044-4530
NSN 4140-00-510-3699
NSN 6240-01-446-6315
NSN 6685-01-575-2163
NSN 5915-00-461-5497
NSN 5910-01-339-3711