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 5905-00-770-6699
NSN 5996-00-836-2558
NSN 5998-01-363-1872
NSN 5910-00-248-6370
NSN 5945-01-555-1546
NSN 5855-01-093-8202
NSN 5960-01-485-2467
NSN 5945-00-815-9386
NSN 5910-00-761-4194
NSN 6685-01-167-7364
NSN 5945-01-152-5075
NSN 5910-00-526-0694