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 5999-01-328-7930
NSN 6145-01-274-6190
NSN 6610-01-212-9817
NSN 5910-01-633-9963
NSN 6650-00-011-0310
NSN 6220-00-692-9873
NSN 5925-00-236-1941
NSN 5999-01-598-9777
NSN 4140-01-331-0844
NSN 5925-01-204-6888
NSN 5905-01-426-8362
NSN 6620-01-597-5013