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 6220-00-959-8030
NSN 6240-01-137-1279
NSN 6320-01-335-8336
NSN 5835-01-336-1153
NSN 5985-00-279-2393
NSN 5905-01-437-5185
NSN 6610-01-653-8859
NSN 6145-00-563-7716
NSN 6645-00-276-7544
NSN 5930-01-634-0659
NSN 6145-01-073-4718
NSN 6650-01-364-8504