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 6620-01-283-1338
NSN 6650-00-246-3751
NSN 5930-01-314-9572
NSN 5935-00-735-5368
NSN 5996-01-330-6047
NSN 6145-00-126-1606
NSN 6240-01-355-0437
NSN 6150-01-530-6077
NSN 5835-01-362-8367
NSN 6135-00-221-4720
NSN 6220-01-608-5611
NSN 5835-00-308-4929