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 6620-01-486-9040
NSN 6650-01-155-8182
NSN 5915-00-164-0172
NSN 6685-00-113-5440
NSN 6240-00-031-3112
NSN 5930-01-647-9731
NSN 5996-01-498-2986
NSN 5935-01-375-5448
NSN 6150-01-575-3654
NSN 6620-01-372-4168
NSN 5998-00-973-8785
NSN 5905-01-442-8338