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 6650-00-445-1427
NSN 5996-00-417-4349
NSN 5998-00-843-1125
NSN 5998-00-186-8583
NSN 5915-01-369-7380
NSN 5965-00-888-2643
NSN 5920-01-440-7365
NSN 6645-01-070-7364
NSN 6130-00-079-1269
NSN 6620-00-917-5259
NSN 5950-01-160-8176
NSN 5930-00-577-4073