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 5935-01-554-9997
NSN 6650-01-425-2572
NSN 6645-01-450-4151
NSN 5975-01-277-7329
NSN 6240-01-401-5340
NSN 5925-01-263-1968
NSN 5925-01-480-6114
NSN 6110-01-467-2882
NSN 5915-00-875-2101
NSN 6150-01-136-7658
NSN 5985-00-270-8456
NSN 6320-00-405-2348