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 5835-01-493-1826
NSN 6620-00-728-3445
NSN 6220-00-285-8104
NSN 6650-01-303-7964
NSN 5996-01-592-3011
NSN 5910-01-157-9362
NSN 6110-01-318-6537
NSN 5915-00-614-1323
NSN 5960-01-126-4506
NSN 5950-01-088-1339
NSN 6320-01-458-9567
NSN 4140-00-463-6166