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 5910-01-649-0736
NSN 5945-01-242-2081
NSN 6130-01-358-1181
NSN 5915-01-136-7297
NSN 6610-00-968-8193
NSN 5895-00-983-6580
NSN 6320-01-426-8947
NSN 5945-00-629-0461
NSN 5895-00-443-3823
NSN 5950-00-400-6074
NSN 5990-00-741-9775
NSN 6320-01-583-6809