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 6685-00-327-6401
NSN 5930-01-485-3309
NSN 6650-01-343-8008
NSN 5910-01-377-4616
NSN 4140-01-316-0493
NSN 5985-00-443-5862
NSN 5950-00-432-6249
NSN 5935-00-922-3552
NSN 5905-00-523-0191
NSN 6145-00-191-3903
NSN 6650-01-109-4735
NSN 6220-01-529-7268