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 6685-01-239-4182
NSN 6130-01-495-0547
NSN 5996-01-259-3982
NSN 6150-00-292-8778
NSN 6610-00-168-2200
NSN 6620-00-104-6937
NSN 5915-01-484-6542
NSN 6130-01-201-4105
NSN 5895-00-758-6481
NSN 5975-01-032-4295
NSN 6145-01-144-1063
NSN 5950-01-358-2001