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 5999-01-282-0880
NSN 6145-00-170-3567
NSN 6620-01-106-2814
NSN 5920-01-286-9936
NSN 6610-00-255-2752
NSN 5905-01-576-9894
NSN 5855-00-987-1171
NSN 5960-00-195-4448
NSN 5999-00-083-4008
NSN 5965-01-597-0798
NSN 6320-01-538-0775
NSN 4140-00-948-7041