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 6150-01-128-0198
NSN 6620-00-877-3266
NSN 5998-00-487-3656
NSN 6110-00-058-1133
NSN 5945-01-383-7259
NSN 6150-01-245-8701
NSN 5996-01-508-2467
NSN 5998-01-521-3485
NSN 5975-01-050-7785
NSN 5915-01-065-1127
NSN 6650-01-144-5351
NSN 2925-01-535-7235