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 5855-01-085-5354
NSN 5945-01-226-7693
NSN 6220-00-804-3598
NSN 5960-01-195-6905
NSN 6240-01-143-5523
NSN 6135-01-328-0639
NSN 5925-01-270-2119
NSN 5920-00-246-5992
NSN 5996-01-534-7302
NSN 5905-01-508-1339
NSN 6105-01-576-9045
NSN 6685-00-834-2304