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 6220-01-444-6152
NSN 5985-01-571-8515
NSN 5998-00-196-1912
NSN 5996-01-067-6730
NSN 6610-01-346-2802
NSN 2925-01-565-6410
NSN 5975-00-003-0933
NSN 5895-00-823-5976
NSN 6685-01-534-7702
NSN 5960-01-293-6624
NSN 5915-01-456-1111
NSN 6685-01-501-6699