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 5999-01-657-1838
NSN 5996-00-498-1615
NSN 5855-01-602-9653
NSN 6135-01-039-2882
NSN 6645-01-608-1134
NSN 6645-01-160-7707
NSN 5985-01-382-9220
NSN 5999-01-551-5363
NSN 5915-00-274-2282
NSN 4140-01-009-5859
NSN 5920-00-915-3571
NSN 6240-01-226-4858