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 5945-01-412-1393
NSN 6620-00-146-3465
NSN 6145-01-323-6509
NSN 5925-01-343-6225
NSN 5905-00-476-4942
NSN 6105-00-402-6315
NSN 5998-00-619-1663
NSN 5855-01-398-9548
NSN 5996-01-128-4811
NSN 6610-00-514-7773
NSN 5925-01-500-3880
NSN 6620-01-364-2103