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 5905-01-417-0788
NSN 5965-01-612-2879
NSN 5998-01-445-5601
NSN 6110-00-728-4515
NSN 5996-01-159-9089
NSN 6110-01-144-8607
NSN 6610-01-421-3987
NSN 4140-01-511-2674
NSN 5975-00-316-2539
NSN 5855-01-255-1688
NSN 5999-00-296-7738
NSN 6150-00-208-1741