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 6610-00-677-5976
NSN 6130-00-604-9462
NSN 4140-01-062-3125
NSN 6650-00-442-0567
NSN 5999-01-523-4134
NSN 5998-00-172-7619
NSN 4140-00-580-8508
NSN 5965-01-461-2850
NSN 5935-01-053-1958
NSN 6105-01-084-6836
NSN 5975-00-226-1167
NSN 5855-01-495-2670