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 6610-01-418-0678
NSN 5915-00-406-6460
NSN 7035-01-431-9693
NSN 6645-01-152-1092
NSN 6620-01-386-5914
NSN 6220-01-228-1943
NSN 5915-01-368-3614
NSN 6645-01-233-1131
NSN 6320-01-443-8676
NSN 5925-01-617-7880
NSN 5915-01-651-8274
NSN 5930-01-152-1909