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 6320-01-359-3921
NSN 6610-01-481-9575
NSN 6650-01-442-7893
NSN 6220-00-523-0182
NSN 5920-01-005-0161
NSN 6105-01-023-2773
NSN 6620-01-528-0759
NSN 5996-01-344-9741
NSN 6130-01-484-6006
NSN 5950-01-500-8928
NSN 6645-01-142-8502
NSN 5985-01-265-1100