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 5975-01-531-1507
NSN 6130-00-042-7952
NSN 5999-01-643-7279
NSN 6610-01-465-1320
NSN 5935-01-222-4461
NSN 6145-01-073-1509
NSN 5985-01-118-4784
NSN 5960-01-573-6483
NSN 6240-00-526-0243
NSN 2925-00-914-7627
NSN 5905-01-025-2059
NSN 5950-01-341-9573