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 5920-01-186-7914
NSN 6685-00-684-7891
NSN 5960-00-233-5488
NSN 5985-00-696-7989
NSN 5920-01-371-3112
NSN 7035-00-679-9027
NSN 6130-01-606-2255
NSN 5945-00-494-6078
NSN 7035-01-328-7448
NSN 5905-00-706-3985
NSN 7035-01-235-2295
NSN 5855-01-531-3097