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 6320-00-553-8427
NSN 5945-00-989-3669
NSN 5920-00-925-2639
NSN 2925-00-005-1618
NSN 6130-00-168-6185
NSN 6620-00-915-0868
NSN 5996-00-768-7241
NSN 6105-01-048-9962
NSN 6105-01-273-0212
NSN 6145-01-631-9117
NSN 5835-01-478-0157
NSN 6650-01-339-7571