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 5950-00-961-2140
NSN 5999-01-016-6539
NSN 5965-01-518-5090
NSN 4140-01-312-7066
NSN 5910-01-355-5934
NSN 6645-00-759-3962
NSN 6220-01-235-5843
NSN 5835-01-482-1591
NSN 5975-01-630-1234
NSN 5930-01-422-2548
NSN 5910-01-014-0716
NSN 5930-01-561-8648