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 5945-01-041-5545
NSN 6240-00-660-8849
NSN 6645-00-173-2800
NSN 5975-01-472-9091
NSN 5925-00-369-7747
NSN 5925-01-467-9181
NSN 5985-01-430-2083
NSN 5998-01-329-4864
NSN 4140-00-043-0279
NSN 5835-01-173-8003
NSN 6685-00-290-8195
NSN 5975-00-789-3846