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 6685-00-372-3622
NSN 6240-01-363-8258
NSN 5910-00-270-4083
NSN 6240-00-456-2578
NSN 6220-01-492-9403
NSN 5999-00-020-3322
NSN 6610-00-010-3085
NSN 5915-00-003-9853
NSN 5999-01-367-6162
NSN 5945-01-068-3503
NSN 6150-00-087-4920
NSN 4140-00-226-5872