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 6320-01-573-6490
NSN 6130-01-019-4064
NSN 6650-00-023-1638
NSN 5965-00-224-5102
NSN 7035-01-086-8095
NSN 6145-01-393-5387
NSN 6620-01-063-9054
NSN 7035-01-426-4133
NSN 5835-01-229-6964
NSN 5835-01-251-7301
NSN 5998-00-068-9907
NSN 5990-01-447-7779