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 6620-01-116-3983
NSN 5985-00-483-0520
NSN 6240-01-050-9156
NSN 5950-00-686-9945
NSN 5975-00-185-5243
NSN 5930-01-482-4457
NSN 7035-00-445-9657
NSN 6620-01-600-7483
NSN 5999-01-051-2578
NSN 6620-01-173-3284
NSN 6650-00-316-4889
NSN 6150-00-922-6893