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 5910-01-425-6127
NSN 6650-01-399-8552
NSN 5920-00-452-3889
NSN 6105-01-510-3915
NSN 5950-01-025-7340
NSN 6110-01-589-5005
NSN 5935-00-186-8729
NSN 5855-01-502-1607
NSN 5945-00-172-8224
NSN 5960-00-788-2976
NSN 5960-00-114-4916
NSN 6145-01-205-5184