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 5915-01-437-6552
NSN 5990-00-167-2692
NSN 5905-01-164-1485
NSN 6685-01-634-0611
NSN 5895-01-128-0074
NSN 6145-00-528-6467
NSN 6145-01-529-4097
NSN 6645-01-659-1583
NSN 5950-00-518-4645
NSN 5990-01-101-7602
NSN 6130-00-837-2409
NSN 5920-00-469-2648