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 6645-01-436-9702
NSN 5975-01-323-6265
NSN 6150-01-142-2709
NSN 6150-00-021-5292
NSN 5990-00-212-4316
NSN 5998-01-073-0775
NSN 5920-01-340-6950
NSN 6110-01-523-6765
NSN 5985-01-425-0775
NSN 6135-00-377-9165
NSN 5915-00-348-2624
NSN 6650-00-629-8027