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 6145-01-617-8377
NSN 5965-00-894-0015
NSN 5930-00-169-9860
NSN 6610-01-226-5192
NSN 7035-00-481-5182
NSN 5915-01-157-0977
NSN 6130-01-382-5896
NSN 6610-01-506-7887
NSN 6685-01-501-9675
NSN 5835-01-071-9310
NSN 6620-01-553-7917
NSN 5985-01-351-9993