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 5905-01-116-5406
NSN 5999-01-253-8662
NSN 5930-00-913-8871
NSN 5905-01-650-7682
NSN 6320-00-925-0558
NSN 5835-01-352-7211
NSN 5925-00-544-5980
NSN 5985-00-690-3435
NSN 5910-01-332-5624
NSN 5950-00-228-0818
NSN 6620-01-597-0512
NSN 5835-01-336-1153