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 5990-01-298-6616
NSN 5910-01-050-9169
NSN 6685-00-420-2781
NSN 5998-01-509-8497
NSN 5950-00-092-2140
NSN 5985-00-186-0732
NSN 6110-00-774-9727
NSN 5960-00-005-2424
NSN 6645-00-936-8120
NSN 5950-01-203-1724
NSN 6145-01-109-4913
NSN 6110-01-341-3514