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 5910-01-357-4226
NSN 5910-01-345-0263
NSN 6685-00-239-9301
NSN 6645-01-590-6385
NSN 5915-01-285-5316
NSN 5895-00-963-8751
NSN 5905-01-430-2541
NSN 2925-01-631-2372
NSN 6650-01-567-8552
NSN 5920-01-432-2743
NSN 5960-00-998-4324
NSN 7035-01-391-7470