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 5975-00-754-5299
NSN 6610-00-119-1591
NSN 6240-00-777-4263
NSN 6610-01-304-3226
NSN 5925-01-215-2119
NSN 6150-00-350-5333
NSN 5965-01-374-1651
NSN 6220-01-308-5631
NSN 5999-01-415-3897
NSN 6620-01-621-0719
NSN 5998-01-328-7889
NSN 6150-01-537-3853