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 5920-01-280-9147
NSN 5998-00-554-9725
NSN 5996-01-139-2843
NSN 5950-01-214-6435
NSN 5999-00-243-2552
NSN 4140-00-161-2586
NSN 5935-00-057-9671
NSN 5996-01-603-0360
NSN 5998-01-318-1857
NSN 5855-01-634-0259
NSN 5945-00-119-6174
NSN 6240-01-140-7508