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 6150-01-430-2564
NSN 6130-00-954-2859
NSN 5945-01-423-5640
NSN 5910-00-646-5457
NSN 5905-00-551-1279
NSN 6220-00-943-2623
NSN 5999-01-541-5109
NSN 7035-01-514-8522
NSN 6685-01-558-9415
NSN 5915-01-354-7548
NSN 6145-01-443-3515
NSN 2925-01-255-6394