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 5910-01-535-7501
NSN 5935-00-528-9908
NSN 6130-01-128-2739
NSN 6240-00-350-4375
NSN 5990-01-170-6081
NSN 5920-01-605-8747
NSN 5925-01-327-2731
NSN 5965-01-165-9787
NSN 6240-01-248-7191
NSN 5930-00-455-5164
NSN 5990-01-016-3006
NSN 7035-00-371-7749