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 5905-01-347-2705
NSN 6685-01-345-4834
NSN 5920-00-311-3953
NSN 6650-01-145-5173
NSN 5930-00-262-6057
NSN 5965-00-170-5254
NSN 6645-01-495-0939
NSN 5950-01-209-6900
NSN 5855-01-648-7687
NSN 5960-01-062-9106
NSN 5835-01-621-2525
NSN 5910-01-336-7943