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 5905-01-391-3482
NSN 5915-01-417-3120
NSN 5996-00-308-6512
NSN 5895-01-424-0956
NSN 6650-01-613-2663
NSN 6650-00-299-9681
NSN 7035-01-413-6697
NSN 6620-00-330-3728
NSN 5985-01-573-0299
NSN 5996-01-069-8747
NSN 5950-01-336-4732
NSN 5895-01-506-7064