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 5915-01-279-6813
NSN 6150-01-432-9657
NSN 5895-01-420-3439
NSN 5950-00-619-0178
NSN 6145-00-471-0510
NSN 5835-00-572-7445
NSN 5999-01-239-9762
NSN 5905-00-549-7692
NSN 5905-01-452-1767
NSN 6220-01-423-8319
NSN 6320-01-652-3806
NSN 5990-01-154-7296