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 6130-01-318-7045
NSN 5990-01-144-6994
NSN 6145-01-172-1000
NSN 5910-01-514-6990
NSN 5935-00-921-0747
NSN 6145-01-501-4228
NSN 5945-01-357-8460
NSN 5945-00-067-6406
NSN 6150-00-730-8358
NSN 5855-01-246-4274
NSN 6320-00-701-0437
NSN 6220-01-612-0854