As mod by outside dimensions
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 5855-00-532-0025
NSN 2925-01-187-0423
NSN 5935-01-463-3040
NSN 5920-01-360-5681
NSN 6220-01-181-5854
NSN 5895-00-548-9329
NSN 6150-01-255-8183
NSN 5915-01-381-0746
NSN 5895-00-061-7192
NSN 4140-01-132-6612
NSN 5975-01-642-6113
NSN 5905-01-261-6786