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 6150-00-905-1744
NSN 5915-00-683-3800
NSN 6650-00-809-1817
NSN 5920-01-386-7048
NSN 5999-00-639-3447
NSN 6320-00-857-4073
NSN 5990-01-531-5962
NSN 6620-01-577-6285
NSN 5999-01-393-4333
NSN 2925-01-581-3273
NSN 5935-01-654-9526
NSN 2925-01-267-1598