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 6685-00-139-0897
NSN 5855-00-134-0569
NSN 6240-00-227-0135
NSN 6610-00-883-5160
NSN 6620-00-335-9462
NSN 5999-01-406-4571
NSN 6320-01-304-3639
NSN 5975-00-970-5115
NSN 6240-01-633-9357
NSN 5910-01-600-2613
NSN 5835-00-003-0295
NSN 5950-01-552-6952