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 2925-01-062-2660
NSN 6105-00-005-8505
NSN 2925-01-106-3552
NSN 4140-01-106-2283
NSN 6650-00-409-0907
NSN 5950-00-917-5057
NSN 7035-01-630-2123
NSN 6620-00-403-6787
NSN 5910-01-516-2146
NSN 5910-00-194-9605
NSN 6320-00-809-5744
NSN 6320-00-149-7570