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 6320-01-036-2598
NSN 6145-01-351-5674
NSN 6650-00-567-0715
NSN 6135-01-177-3552
NSN 6240-01-390-1705
NSN 5945-01-483-5561
NSN 6650-01-363-9043
NSN 5855-01-445-6551
NSN 5905-01-323-7065
NSN 6240-00-432-6749
NSN 7035-00-320-5644
NSN 6645-00-389-3370