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 5990-01-218-5160
NSN 6320-01-292-2232
NSN 5998-00-265-1001
NSN 5990-01-626-3840
NSN 4140-01-035-5530
NSN 6610-01-141-7014
NSN 5990-01-183-6478
NSN 6150-01-299-9133
NSN 5930-00-981-7255
NSN 6130-01-578-6832
NSN 6110-00-518-2998
NSN 5950-01-269-7275