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 6685-01-527-6373
NSN 6220-01-098-1808
NSN 5999-01-588-1849
NSN 5835-01-442-6482
NSN 6135-01-633-8502
NSN 5835-01-610-5744
NSN 2925-00-103-6822
NSN 5950-01-469-6424
NSN 5895-00-534-3163
NSN 6135-01-035-1871
NSN 5935-00-339-2189
NSN 4140-01-398-5958