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 6240-01-066-9905
NSN 5990-00-827-0684
NSN 5950-00-101-2640
NSN 7035-01-522-5597
NSN 6220-01-154-3213
NSN 6130-01-433-2215
NSN 5935-01-382-1620
NSN 5930-00-118-8116
NSN 6105-01-175-3077
NSN 5990-00-105-9575
NSN 6130-00-596-9565
NSN 5999-00-907-9678