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 4140-01-109-5564
NSN 5998-01-483-5661
NSN 5999-00-642-9021
NSN 6650-00-095-6490
NSN 5960-01-294-2397
NSN 6105-01-281-6806
NSN 5996-01-281-7336
NSN 6130-01-165-1127
NSN 6145-00-404-7927
NSN 6650-01-171-4129
NSN 4140-01-543-4697
NSN 5915-00-993-8335