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 5910-01-277-4120
NSN 6685-01-314-8568
NSN 5910-00-441-8810
NSN 6320-00-432-2772
NSN 6610-00-925-5064
NSN 5996-01-425-1455
NSN 6110-00-288-4179
NSN 6145-01-329-2018
NSN 5925-01-146-1953
NSN 5975-01-146-5663
NSN 5855-00-149-0766
NSN 5895-01-562-4268