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 5910-00-350-3539
NSN 2925-01-453-1606
NSN 6620-01-591-1331
NSN 2925-01-127-0167
NSN 6650-01-096-2061
NSN 5985-01-491-8961
NSN 5975-00-868-2356
NSN 5998-00-980-1638
NSN 4140-01-550-3438
NSN 5915-01-525-5698
NSN 5935-01-058-5500
NSN 6220-01-427-2333