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 5998-01-302-9193
NSN 6220-01-581-7214
NSN 6645-01-594-6407
NSN 5835-00-553-3575
NSN 5975-01-464-1666
NSN 6610-01-545-0766
NSN 7035-01-435-7962
NSN 5895-00-003-4496
NSN 5930-00-297-2599
NSN 5996-01-324-7008
NSN 5895-01-107-3173
NSN 5996-00-898-5597