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 6650-01-487-4949
NSN 5930-00-629-8667
NSN 6320-01-206-1055
NSN 5930-01-461-5931
NSN 5910-01-422-3721
NSN 5945-01-342-7527
NSN 5996-00-202-6576
NSN 6620-01-506-1003
NSN 5996-00-735-9346
NSN 2925-00-228-8854
NSN 6650-01-545-5672
NSN 5915-01-068-7802