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 5910-00-113-3611
NSN 5999-00-254-1341
NSN 6110-01-058-2476
NSN 6130-01-218-0559
NSN 6240-00-877-3405
NSN 5999-01-065-1646
NSN 6650-00-001-5407
NSN 6610-00-329-3534
NSN 5930-01-373-3709
NSN 6320-01-338-6006
NSN 6610-00-084-2400
NSN 5910-01-226-6374