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 6610-01-233-5857
NSN 7035-00-803-3056
NSN 6105-01-463-8557
NSN 5895-01-277-0811
NSN 4140-01-608-3992
NSN 6150-01-022-3031
NSN 5960-01-531-4845
NSN 5930-01-369-2327
NSN 6110-01-597-3968
NSN 5835-00-173-4456
NSN 5996-00-085-4617
NSN 5975-01-656-8608