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 5960-01-458-6484
NSN 5905-00-972-9860
NSN 5935-01-310-5397
NSN 5905-01-514-7467
NSN 5999-01-186-4764
NSN 6320-01-412-2973
NSN 5930-01-567-6066
NSN 6150-01-461-8116
NSN 6320-00-160-0899
NSN 5835-01-545-6467
NSN 6145-01-180-6512
NSN 5975-00-018-0815