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 6220-01-100-2703
NSN 6240-01-322-5521
NSN 6320-00-164-4087
NSN 6145-01-441-9541
NSN 6130-01-574-5026
NSN 2925-01-074-9102
NSN 5910-01-357-0084
NSN 5895-01-600-6782
NSN 5895-00-280-2811
NSN 5999-00-719-1875
NSN 4140-00-826-9031
NSN 6220-01-155-6521