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 5999-01-578-1686
NSN 5960-01-553-4557
NSN 5925-00-156-4044
NSN 5925-00-226-1155
NSN 6650-00-754-2276
NSN 6145-01-633-8796
NSN 5985-01-651-0688
NSN 5975-01-645-1075
NSN 5998-01-552-9824
NSN 5915-01-265-2992
NSN 5999-01-360-7062
NSN 5920-01-069-2992