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 6620-01-052-2773
NSN 5855-00-323-0967
NSN 6130-01-335-0437
NSN 5930-01-135-8179
NSN 5998-01-069-7258
NSN 5990-01-360-2900
NSN 5965-00-072-9942
NSN 6135-00-708-0892
NSN 5960-01-589-6846
NSN 5950-00-290-8090
NSN 5930-00-863-1293
NSN 5910-00-025-0451