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 5910-01-152-4947
NSN 5996-01-200-7282
NSN 6620-00-620-7360
NSN 5965-01-062-3492
NSN 5990-00-405-5182
NSN 6685-01-451-9071
NSN 7035-01-145-5059
NSN 5998-00-283-9547
NSN 5925-00-254-4924
NSN 6620-00-431-3837
NSN 5915-01-219-1327
NSN 5945-00-233-5804