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 5910-01-370-9706
NSN 5925-01-623-4803
NSN 7035-01-605-3375
NSN 5930-01-371-8816
NSN 6620-00-936-3463
NSN 6135-01-544-2630
NSN 6650-01-546-5425
NSN 5835-01-193-6192
NSN 5990-00-192-1753
NSN
NSN 6220-00-905-5686
NSN 6135-01-215-1245