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 6220-01-112-1607
NSN 5930-00-982-8675
NSN 6610-01-104-6981
NSN 5975-01-110-7686
NSN 5965-01-569-8634
NSN 5935-01-611-7833
NSN 6105-01-429-6853
NSN 2925-01-089-6269
NSN 6620-00-793-7733
NSN 5910-01-582-7355
NSN 6135-00-016-0071
NSN 6135-00-816-9052