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 6645-01-067-0780
NSN 5950-01-578-8337
NSN 6145-01-481-5070
NSN 6610-00-296-5007
NSN 6130-01-321-5855
NSN 6110-01-088-2988
NSN 5999-00-682-4354
NSN 6220-00-186-8565
NSN 5960-00-871-3950
NSN 5975-01-121-1596
NSN 5915-00-418-3849
NSN 5996-01-330-8742