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 5975-01-276-2895
NSN 5999-01-334-3597
NSN 6130-00-728-2439
NSN 6135-01-255-9129
NSN 5855-01-611-2803
NSN 5999-01-093-2723
NSN 6320-01-330-8054
NSN 5960-01-423-4240
NSN 5945-01-224-1603
NSN 6105-01-227-4527
NSN 6685-01-650-1828
NSN 5996-01-012-1924