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 5835-01-250-2939
NSN 5935-00-308-7777
NSN 6240-01-206-4809
NSN 5915-01-359-3802
NSN 5999-00-960-7155
NSN 6645-01-502-3068
NSN 6620-00-290-6505
NSN 5985-01-422-2552
NSN 5835-00-401-8655
NSN 6685-01-418-0925
NSN 5905-01-245-6618
NSN 5835-01-235-1125