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 5910-00-204-0111
NSN 5895-00-762-1856
NSN 5965-01-005-0341
NSN 5915-00-285-2213
NSN 6620-01-435-8672
NSN 5996-01-411-1841
NSN 6220-01-037-7852
NSN 5996-00-369-5192
NSN 6135-01-445-6589
NSN 5990-00-518-0684
NSN 5945-00-473-1920
NSN 6685-01-070-2590