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 6320-01-631-7828
NSN 6645-01-018-7664
NSN 5905-01-023-2412
NSN 5965-00-126-8401
NSN 7035-01-023-7859
NSN 5855-01-076-2741
NSN 5945-00-045-5266
NSN 5925-01-157-4609
NSN 5998-00-128-8128
NSN 6150-01-511-0331
NSN 6610-01-474-6333
NSN 5855-01-195-2518