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 5920-01-453-7040
NSN 5895-01-062-1792
NSN 5996-01-232-6906
NSN 6685-01-542-1724
NSN 5855-00-487-9691
NSN 5975-01-494-0577
NSN 5910-01-323-4717
NSN 5998-01-182-4926
NSN 5895-01-260-2280
NSN 5996-00-471-0540
NSN 5905-01-019-3674
NSN 5925-00-361-8836