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 6135-01-285-1925
NSN 6620-00-401-8489
NSN 5915-00-439-5891
NSN 6650-01-040-9637
NSN 6650-00-717-8913
NSN 5985-00-355-7611
NSN 6220-01-647-1773
NSN 5996-01-045-0955
NSN 6240-01-553-1281
NSN 5835-00-980-0468
NSN 5835-01-632-6627
NSN 6685-01-595-5731