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 5930-01-037-9697
NSN 4140-00-686-4894
NSN 6220-00-262-0017
NSN 6620-00-244-0965
NSN 6130-01-461-8928
NSN 5835-01-245-8077
NSN 5855-00-174-3482
NSN 5835-01-447-2544
NSN 5835-00-242-3763
NSN 5895-00-225-9589
NSN 5950-00-280-7825
NSN 5910-01-218-4922