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 7035-00-096-9986
NSN 5990-00-492-5063
NSN 5910-01-588-4158
NSN 6320-00-831-2227
NSN 6150-00-097-6136
NSN 4140-01-097-2008
NSN 6645-01-437-9017
NSN 5930-01-612-2817
NSN 5965-01-283-8204
NSN 5905-00-811-8671
NSN 5945-01-537-3523
NSN 6620-00-816-9755