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 5985-01-110-7559
NSN 6150-01-165-6525
NSN 5990-01-254-2936
NSN 6105-01-337-8143
NSN 5835-01-592-2350
NSN 6650-01-501-7061
NSN 5920-01-010-4855
NSN 6685-00-141-4300
NSN 5905-01-614-7283
NSN 6620-01-537-4121
NSN 5835-00-825-2512
NSN 6150-00-385-9150