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 6110-01-507-4452
NSN 7035-01-207-8704
NSN 5975-00-629-2768
NSN 5835-01-469-6706
NSN 5935-01-501-9008
NSN 5965-01-194-3453
NSN 5905-00-496-1855
NSN 6645-01-278-6973
NSN 5996-00-106-9648
NSN 6240-01-450-6219
NSN 5975-00-341-3913
NSN 6685-01-477-3890