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 5895-00-893-3207
NSN 6240-01-034-9457
NSN 5925-01-227-2356
NSN 6220-00-484-1017
NSN 6645-01-028-2186
NSN 5930-00-412-0324
NSN 5835-01-550-5094
NSN 5935-00-627-1453
NSN 6150-01-410-7218
NSN 5990-01-414-2778
NSN 5996-01-299-7792
NSN 4140-01-544-1764