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 6620-00-456-0404
NSN 5960-00-577-4354
NSN 6645-01-285-4224
NSN 5910-01-059-0249
NSN 6145-01-131-4094
NSN 5999-00-085-0722
NSN 5915-01-642-1671
NSN 6150-01-413-0193
NSN 6105-00-773-3295
NSN 5945-01-082-5274
NSN 5935-00-272-7035
NSN 6650-01-131-7233