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 5855-01-273-6132
NSN 5915-01-462-6393
NSN 4140-01-594-4551
NSN 5835-01-013-9321
NSN 4140-01-290-4026
NSN 5910-01-538-3736
NSN 6685-00-181-6194
NSN 5855-00-494-9581
NSN 5920-01-493-3938
NSN 5965-01-607-0632
NSN 5925-00-994-7331
NSN 5999-01-649-0874