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 5920-00-234-9002
NSN 5915-01-535-3414
NSN 5965-00-985-9157
NSN 5855-01-136-9532
NSN 6240-00-242-0003
NSN 5910-00-725-5866
NSN 6620-00-266-2763
NSN 5835-01-502-9228
NSN 5930-00-456-0889
NSN 6130-00-042-7952
NSN 6320-01-421-3777
NSN 7035-00-163-6221