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 6135-01-437-6409
NSN 6645-00-171-9639
NSN 6645-00-222-2785
NSN 4140-01-024-9414
NSN 6135-01-303-0295
NSN 6135-01-616-9489
NSN 5999-00-918-6887
NSN 5930-00-286-8560
NSN 5950-01-479-4473
NSN 5905-00-081-6978
NSN 5990-00-351-5479
NSN 5950-01-319-3666