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 6645-01-147-1474
NSN 5835-01-050-9509
NSN 5895-00-550-8807
NSN 6685-00-889-9486
NSN 6650-00-456-1736
NSN 5920-00-824-4131
NSN 6220-01-051-3865
NSN 5935-01-065-6406
NSN 6620-00-935-1321
NSN 5985-01-133-8197
NSN 5915-00-356-0189
NSN 6150-01-163-8793