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 5910-01-391-5009
NSN 6145-01-374-7793
NSN 5915-00-135-0770
NSN 5998-01-230-1701
NSN 7035-00-703-3535
NSN 5930-01-535-1282
NSN 5960-01-027-1835
NSN 6135-00-891-4944
NSN 6645-01-556-5263
NSN 5985-00-932-4257
NSN 5835-01-459-8664
NSN 4140-00-242-6465