Temper 1/2 or 3/4 hard
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 4140-01-627-3930
NSN 6240-01-384-8802
NSN 6610-00-527-8892
NSN 6150-00-336-9057
NSN 5998-00-167-9523
NSN 5835-01-632-6627
NSN 5945-01-273-3134
NSN 6320-01-532-7491
NSN 5999-00-138-4856
NSN 4140-00-249-5603
NSN 5895-01-008-8173
NSN 6650-00-977-7533