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 5996-00-136-9651
NSN 6135-00-016-0071
NSN 6145-01-417-2988
NSN 2925-01-253-6006
NSN 5905-01-567-5780
NSN 5935-00-689-5187
NSN 5910-01-069-3432
NSN 5925-01-599-3858
NSN 5945-00-438-2197
NSN 6240-01-223-3924
NSN 5996-01-065-3440
NSN 5920-00-054-7048