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 5855-00-337-3679
NSN 5998-00-769-6841
NSN 2925-01-032-3814
NSN 5910-01-130-8409
NSN 5950-01-293-6562
NSN 6110-01-135-2027
NSN 6650-01-197-4585
NSN 5990-00-104-4903
NSN 6220-01-023-0394
NSN 5996-00-022-3054
NSN 5910-01-369-9618
NSN 5925-01-568-3131