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 4140-00-235-6377
NSN 5985-01-410-6909
NSN 6685-00-257-2987
NSN 5998-00-375-8967
NSN 4140-00-895-1882
NSN 6320-01-087-7961
NSN 7035-00-312-3055
NSN 6105-01-397-4608
NSN 5855-01-470-2755
NSN 5960-01-268-8674
NSN 5960-01-302-4456
NSN 5915-00-350-3430