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 5965-01-476-0721
NSN 6220-00-266-8222
NSN 5975-01-094-8402
NSN 5999-00-764-3666
NSN 5930-00-196-3849
NSN 5975-01-440-4381
NSN 6240-01-512-1856
NSN 5915-01-633-9845
NSN 6130-01-607-1771
NSN 7035-00-079-7189
NSN 6685-01-205-3830
NSN 5910-00-208-6811