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 5950-00-391-6963
NSN 6685-01-595-3495
NSN 5990-01-113-0303
NSN 6105-01-458-3996
NSN 6240-00-272-8601
NSN 5915-01-320-6858
NSN 4140-01-132-0093
NSN 6620-01-100-0431
NSN 5855-01-497-0467
NSN 5998-00-910-2672
NSN 5935-01-077-7269
NSN 6610-01-444-1490