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 5910-01-077-5322
NSN 5960-01-079-0660
NSN 5935-01-552-5998
NSN 6320-01-328-6575
NSN 6645-01-331-5674
NSN 6110-00-283-3630
NSN 6145-00-081-3993
NSN 5855-00-133-5897
NSN 6610-01-400-3880
NSN 5950-01-196-5715
NSN 5965-01-435-3414
NSN 5915-01-254-2128