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 2925-01-139-5144
NSN 5920-01-363-7063
NSN 5999-01-642-4484
NSN 6135-00-269-5843
NSN 5945-00-132-5139
NSN 5920-00-954-2714
NSN 6320-01-078-8257
NSN 6110-01-492-6489
NSN 6145-01-235-0761
NSN 5915-01-444-4069
NSN 5910-01-610-6282
NSN 5960-01-624-1170