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 4140-00-203-0812
NSN 5925-00-208-5637
NSN 6645-01-633-1852
NSN 5935-01-181-1128
NSN 5950-01-103-3494
NSN 5975-01-379-0747
NSN 4140-00-274-9638
NSN 5920-00-621-6601
NSN 5930-01-450-1409
NSN 2925-01-400-2286
NSN 5855-00-256-5562
NSN 6110-01-469-3127