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 5950-01-032-1667
NSN 6150-00-405-9081
NSN 5915-01-529-0577
NSN 5910-00-326-2022
NSN 5930-01-214-1873
NSN 6685-01-655-6321
NSN 6650-01-087-0862
NSN 5945-00-104-8053
NSN 5855-00-149-0766
NSN 6135-00-416-2898
NSN 5895-00-850-8838
NSN 6220-01-004-8909