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 6650-00-299-9681
NSN 6610-01-441-8364
NSN 6240-01-442-7746
NSN 6240-01-062-0878
NSN 5975-00-580-0434
NSN 6145-01-514-6639
NSN 5855-01-100-3272
NSN 6105-00-631-3009
NSN 5895-00-173-2538
NSN 6150-01-500-2536
NSN 5975-00-768-3570
NSN 5835-00-401-2578