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 6220-01-508-6807
NSN 5835-01-416-6455
NSN 5895-00-051-0464
NSN 5915-00-690-1714
NSN 5975-00-155-4181
NSN 4140-01-400-3610
NSN 5835-01-555-8963
NSN 5895-01-282-3594
NSN 6105-01-441-9312
NSN 5935-00-816-2495
NSN 6685-01-115-1706
NSN 6110-00-516-8645