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 5945-00-412-4204
NSN 6150-01-616-6858
NSN 5975-01-180-8029
NSN 5985-01-462-1310
NSN 5855-01-472-1946
NSN 5835-00-887-1941
NSN 5950-01-220-6202
NSN 6320-01-268-3072
NSN 5975-00-312-1410
NSN 5920-00-169-4428
NSN 5905-01-463-8591
NSN 5925-01-409-2616