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 5975-01-025-5794
NSN 6650-01-532-6966
NSN 5950-01-363-6328
NSN 5855-01-564-2044
NSN 6150-01-328-8604
NSN 6620-01-357-0757
NSN 5915-01-116-2932
NSN 2925-00-504-2363
NSN 5975-01-634-0678
NSN 5855-00-455-6070
NSN 5965-01-258-5662
NSN 5975-01-155-4856