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 6685-01-254-3490
NSN 5965-00-393-1294
NSN 6645-01-553-8500
NSN 5905-01-373-3835
NSN 4140-01-510-9666
NSN 5945-01-025-0368
NSN 5895-01-090-0567
NSN 5920-01-100-5571
NSN 2925-01-619-4825
NSN 5999-01-576-1538
NSN 5999-01-127-8299
NSN 5895-01-574-9775