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 6650-01-113-6689
NSN 6645-01-579-4247
NSN 2925-00-294-4140
NSN 6320-00-115-0883
NSN 7035-01-419-1462
NSN 5905-01-544-3875
NSN 6130-01-576-6595
NSN 5950-01-350-7615
NSN 5915-01-372-2004
NSN 6150-00-659-1310
NSN 5930-01-015-6375
NSN 2925-01-629-9416