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 5905-01-391-9473
NSN 6685-01-325-5672
NSN 6685-01-628-2034
NSN 6240-01-542-8886
NSN 5985-00-655-1204
NSN 5960-00-182-7375
NSN 5965-01-501-1329
NSN 6685-00-740-7256
NSN 6240-00-286-0742
NSN 5895-01-094-5492
NSN 6240-00-170-5302
NSN 6650-01-378-7875