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 6105-00-055-3503
NSN 2925-01-556-0333
NSN 5996-01-394-7577
NSN 4140-00-963-2855
NSN 6220-00-625-8554
NSN 5945-01-426-8747
NSN 6145-01-273-0077
NSN 5990-01-453-3552
NSN 5985-01-550-6585
NSN 5855-01-495-2670
NSN 4140-00-720-4229
NSN 5915-00-240-3812