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 5915-01-438-4451
NSN 6320-01-359-3921
NSN 5996-01-381-1316
NSN 4140-00-174-8844
NSN 5985-01-187-8297
NSN 6645-00-050-3738
NSN 5960-01-588-1441
NSN 5835-01-545-6467
NSN 6110-01-054-1234
NSN 6130-01-347-0867
NSN 5998-01-605-2485
NSN 4140-00-412-2408