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 5998-00-623-2954
NSN 5920-01-433-4597
NSN 6320-01-029-4220
NSN 6220-00-271-9553
NSN 6645-01-266-0883
NSN 5996-00-612-1590
NSN 6320-01-277-5793
NSN 6320-01-631-7828
NSN 5985-00-426-8860
NSN 5895-01-633-2118
NSN 6620-00-628-2150
NSN 5905-00-772-2863