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 5998-01-456-5613
NSN 5910-00-994-4558
NSN 5935-00-152-7921
NSN 6130-01-511-4996
NSN 6650-00-413-2696
NSN 6110-00-379-9693
NSN 7035-00-727-4068
NSN 5985-01-582-4135
NSN 6685-00-160-1313
NSN 5990-00-104-4903
NSN 5998-01-592-3310
NSN 5915-01-196-4787