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 5910-01-498-3304
NSN 5905-01-528-6378
NSN 5855-01-247-9666
NSN 7035-00-968-4848
NSN 5999-00-176-2335
NSN 5998-01-132-0153
NSN 6650-01-101-9023
NSN 5895-01-250-1665
NSN 5999-01-585-2210
NSN 5999-00-811-8180
NSN 4140-01-562-0499
NSN 5855-00-763-2155