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 6645-00-256-4072
NSN 5935-01-352-5858
NSN 5996-01-436-7152
NSN 5996-00-269-2655
NSN 6320-00-506-2314
NSN 6135-01-166-7355
NSN 5960-01-394-3846
NSN 6320-01-543-3238
NSN 6135-00-900-2139
NSN 6650-01-317-2101
NSN 2925-00-065-2244
NSN 5950-01-167-6556