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 5975-00-122-6881
NSN 5905-01-501-9465
NSN 5950-00-987-1943
NSN 6135-01-244-3211
NSN 6610-01-249-7836
NSN 5925-01-535-0931
NSN 6130-01-206-5151
NSN 5990-01-020-6841
NSN 5925-00-813-6810
NSN 4140-00-917-8734
NSN 6130-01-481-0278
NSN 6150-01-258-5487