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 5998-00-478-2702
NSN 5925-01-089-9791
NSN 5920-01-634-0250
NSN 6145-00-033-2997
NSN 6650-00-834-9062
NSN 5945-00-826-6640
NSN 6135-01-265-1384
NSN 6620-01-555-5218
NSN 5950-00-428-3393
NSN 5915-01-330-4052
NSN 5915-00-933-4137
NSN 6220-00-222-7426