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 5996-01-287-8311
NSN 6620-00-679-5830
NSN 7035-01-324-7796
NSN 6685-00-162-2052
NSN 5998-01-463-9077
NSN 6620-00-290-6505
NSN 5945-01-356-6546
NSN 6135-01-290-6487
NSN 6620-01-032-3937
NSN 5925-01-519-8048
NSN 6150-01-465-0603
NSN 6150-01-516-6965