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 6320-00-553-1310
NSN 6130-00-464-6361
NSN 5855-00-688-9954
NSN 5835-01-495-0595
NSN 6610-01-531-3595
NSN 6130-01-271-9966
NSN 5998-01-117-5326
NSN 5998-01-172-5285
NSN 5920-01-227-1877
NSN 6150-01-397-2196
NSN 6610-00-189-7520
NSN 5910-01-317-5053