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 5915-01-014-6309
NSN 5945-01-281-6968
NSN 5960-01-274-3900
NSN 6240-01-412-0715
NSN 6150-01-540-6086
NSN 5999-00-122-6567
NSN 5996-00-148-8474
NSN 6240-00-383-7668
NSN 5855-01-279-9938
NSN 2925-00-433-5429
NSN 5999-00-669-8928
NSN 5999-01-428-2267