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 5965-00-554-4138
NSN 5996-01-438-0323
NSN 5990-01-407-1474
NSN 6130-00-383-0537
NSN 6320-01-322-8340
NSN 6110-00-412-4624
NSN 6685-01-203-7372
NSN 5910-01-020-7700
NSN 5998-00-139-2652
NSN 6135-01-379-1697
NSN 6240-00-226-0462
NSN 5925-00-595-9394