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 5975-00-889-5118
NSN 6610-01-627-0642
NSN 5990-00-924-4167
NSN 6610-00-694-2071
NSN 6130-01-526-4344
NSN 5985-01-535-7511
NSN 5965-00-594-3115
NSN 6135-01-139-1700
NSN 6110-01-170-4767
NSN 5935-01-592-4393
NSN 5920-00-986-8896
NSN 5855-01-502-8655