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 6135-01-659-7653
NSN 6135-01-139-1700
NSN 5965-00-072-9942
NSN 5998-01-386-5773
NSN 5905-01-171-7069
NSN 6610-01-186-6535
NSN 5990-01-481-3080
NSN 6150-00-770-6940
NSN 4140-01-213-2910
NSN 5905-01-371-1341
NSN 5835-01-291-5405
NSN 4140-01-461-9064