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 6320-00-379-4695
NSN 6240-01-566-4629
NSN 6645-00-932-1464
NSN 6135-00-767-0331
NSN 5905-01-024-4616
NSN 6610-01-435-5425
NSN 5915-01-339-5079
NSN 6620-00-151-5363
NSN 5910-01-394-0290
NSN 6610-01-200-6861
NSN 6685-01-073-0667
NSN 4140-00-945-4055