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 6220-01-253-8827
NSN 5895-01-197-7401
NSN 5998-01-497-0017
NSN 6650-01-573-7165
NSN 6105-01-321-2632
NSN 5950-01-650-1620
NSN 5855-00-293-4708
NSN 5855-01-525-4720
NSN 6610-00-589-6816
NSN 5930-01-575-0786
NSN 5915-01-572-7000
NSN 4140-00-294-3654