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 5910-00-308-9733
NSN 5975-01-347-3577
NSN 6150-01-218-3348
NSN 5930-01-438-0484
NSN 6650-01-449-1413
NSN 5855-01-100-3272
NSN 6650-01-415-4107
NSN 6145-00-269-4271
NSN 6240-01-453-6482
NSN 5915-01-646-1700
NSN 6650-01-607-5817
NSN 5996-00-010-3086