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 5905-01-026-0375
NSN 5920-01-426-8517
NSN 6135-00-643-4843
NSN 6620-00-518-3595
NSN 5915-00-805-1972
NSN 6620-01-532-9023
NSN 6240-01-123-9040
NSN 4140-01-431-6560
NSN 6135-00-276-7625
NSN 6220-00-251-5600
NSN 5915-01-461-4310
NSN 6610-01-224-7675