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 5915-01-358-9964
NSN 5999-01-265-0721
NSN 5915-01-307-2894
NSN 6620-01-352-5640
NSN 6150-00-765-8394
NSN 6130-00-937-2752
NSN 5855-01-580-8155
NSN 5895-01-512-0488
NSN 5930-00-164-0760
NSN 6650-01-525-0958
NSN 5975-01-061-7646
NSN 5998-01-439-8773