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 6220-01-470-5588
NSN 4140-00-608-5654
NSN 6135-01-462-6040
NSN 6110-01-385-0128
NSN 5950-01-025-1649
NSN 5935-00-124-5263
NSN 5915-01-007-4031
NSN 6685-01-203-1034
NSN 5950-01-005-6603
NSN 6105-00-660-7582
NSN 5985-00-343-3632
NSN 6610-01-406-4985