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 5910-00-155-4763
NSN 6620-01-653-9727
NSN 6620-01-374-4382
NSN 5996-00-185-1372
NSN 6150-01-368-7524
NSN 6610-01-509-2048
NSN 5998-01-552-6547
NSN 5915-01-340-1899
NSN 6135-01-389-7518
NSN 5985-00-974-0030
NSN 5996-01-569-1116
NSN 6145-00-603-2578