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 5998-00-481-3123
NSN 5905-01-656-2778
NSN 5998-00-833-2516
NSN 5895-01-180-4348
NSN 6110-01-132-5997
NSN 5960-01-509-8779
NSN 4140-00-866-7015
NSN 5930-00-830-6716
NSN 6105-01-238-1380
NSN 5950-01-421-1788
NSN 2925-01-470-5534
NSN 6650-01-199-0570