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 6150-01-442-4997
NSN 6650-00-420-3593
NSN 6110-00-491-3801
NSN 6650-01-136-9194
NSN 5930-01-279-2997
NSN 5945-01-040-3661
NSN 6240-00-435-0433
NSN 5975-01-569-6181
NSN 5915-00-803-8600
NSN 5835-00-063-0390
NSN 4140-01-067-4317
NSN 6645-01-532-1408