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 5915-01-288-5929
NSN 4140-01-075-8674
NSN 5910-00-807-2055
NSN 2925-00-480-9068
NSN 6130-00-205-1714
NSN 6145-00-226-1194
NSN 5905-00-422-1571
NSN 5855-00-288-1408
NSN 5835-00-257-2852
NSN 5925-00-434-5484
NSN 6150-01-218-0216
NSN 5975-01-578-9517