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 5895-00-283-5581
NSN 5998-00-032-7692
NSN 5905-01-575-5366
NSN 6650-01-500-2594
NSN 5996-00-565-9001
NSN 4140-01-327-3241
NSN 6220-01-435-4839
NSN 5975-01-371-3051
NSN 5920-01-254-9377
NSN 6150-01-626-3473
NSN 5960-00-432-8989
NSN 6645-00-171-9251