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 5975-01-620-2339
NSN 6685-01-163-8833
NSN 6620-01-061-3497
NSN 5965-01-243-5494
NSN 6645-01-080-3510
NSN 5910-01-082-0694
NSN 6145-01-555-1404
NSN 6130-01-336-0932
NSN 5935-01-359-2065
NSN 4140-00-580-8508
NSN 5965-00-854-2075
NSN 5895-01-563-3067