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 5950-00-119-1611
NSN 5855-00-548-4742
NSN 4140-01-003-9850
NSN 5985-01-319-3150
NSN 5945-00-727-4923
NSN 5855-01-301-0158
NSN 5925-01-642-3143
NSN 6220-00-333-8521
NSN 6320-01-616-0843
NSN 5925-01-285-6522
NSN 5935-00-790-4754
NSN 5998-01-496-3981