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 6130-01-228-7940
NSN 6130-01-116-0757
NSN 6150-01-296-8450
NSN 6110-01-194-8318
NSN 6650-01-472-0143
NSN 5999-00-626-3538
NSN 5895-00-964-8989
NSN 5855-01-236-9645
NSN 6320-01-578-6006
NSN 5935-00-959-8566
NSN 5996-00-842-9120
NSN 2925-01-133-8128