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 5910-00-090-9477
NSN 6145-01-550-3607
NSN 6105-01-316-5940
NSN 6620-01-274-3423
NSN 5990-01-571-7468
NSN 5975-00-197-9762
NSN 2925-01-394-9658
NSN 5910-01-435-7677
NSN 5855-00-337-3679
NSN 2925-00-844-2789
NSN 5975-01-634-0678
NSN 6145-01-146-4106