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 6130-00-992-2294
NSN 6610-01-586-3181
NSN 5960-01-094-7569
NSN 5835-00-518-4507
NSN 6650-01-398-1387
NSN 5895-00-246-4415
NSN 4140-01-478-0567
NSN 5855-01-535-2266
NSN 5920-01-346-1208
NSN 6685-01-468-3264
NSN 5975-01-418-6669
NSN 6135-00-284-1406