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 5999-01-004-4043
NSN 6620-00-943-0449
NSN 5950-01-311-1301
NSN 6110-01-619-4881
NSN 5930-00-896-0506
NSN 6105-00-164-4232
NSN 6320-01-209-0952
NSN 7035-00-300-3208
NSN 6145-00-553-2665
NSN 6320-01-388-9450
NSN 5935-01-145-6258
NSN 5920-00-852-4015