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 5975-01-495-0813
NSN 5895-00-058-1667
NSN 5965-00-665-2156
NSN 5905-00-051-1665
NSN 5960-01-177-7406
NSN 6145-00-331-6814
NSN 6145-00-929-4205
NSN 4140-00-253-1801
NSN 6220-01-383-3920
NSN 5965-01-480-3096
NSN 5915-01-370-6417
NSN 6135-01-142-2417