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 5905-01-110-6603
NSN 5945-00-306-0986
NSN 2925-01-480-0169
NSN 5998-00-016-0398
NSN 6145-00-091-1079
NSN 5975-00-348-7427
NSN 6610-01-300-4537
NSN 2925-00-816-8765
NSN 6135-01-503-1688
NSN 6135-01-495-0933
NSN 5950-01-045-7718
NSN 6620-01-460-7877