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 5945-01-604-8977
NSN 5975-01-250-8818
NSN 5990-01-185-9835
NSN 5915-01-561-3546
NSN 4140-01-056-9314
NSN 5990-01-314-2264
NSN 6145-01-435-2215
NSN 6110-01-336-9546
NSN 4140-01-556-7426
NSN 6110-01-477-8302
NSN 6240-01-569-4072
NSN 5985-01-513-7762