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 5910-01-452-7054
NSN 5905-00-725-4134
NSN 5999-01-600-2644
NSN 2925-01-208-6638
NSN 5945-01-487-8536
NSN 5945-00-012-1099
NSN 5960-00-008-5284
NSN 6610-00-004-2879
NSN 5996-01-542-8611
NSN 6220-01-406-5351
NSN 6145-01-423-9845
NSN 5985-01-373-1217