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 5915-01-211-9920
NSN 6135-00-856-1343
NSN 6130-01-014-5419
NSN 6240-01-123-8822
NSN 5910-01-657-6523
NSN 5905-01-462-2640
NSN 6135-01-475-7415
NSN 5996-01-394-7577
NSN 5945-01-428-9943
NSN 6135-00-505-0679
NSN 5965-01-181-5706
NSN 5920-01-620-3023