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 2925-01-068-3844
NSN 6130-01-065-0541
NSN 5998-00-156-7874
NSN 6610-00-971-2503
NSN 4140-01-298-3751
NSN 7035-00-104-7613
NSN 6620-01-122-0238
NSN 5945-01-414-9825
NSN 2925-01-243-0328
NSN 6130-01-422-7010
NSN 6135-01-167-0759
NSN 5920-00-846-2533