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 5985-01-383-4930
NSN 5895-00-596-8678
NSN 6150-01-013-2734
NSN 5910-00-403-9057
NSN 5930-01-569-0072
NSN 5975-00-894-1125
NSN 5998-00-477-0865
NSN 5910-00-203-2119
NSN 6220-01-179-8278
NSN 5910-00-670-7526
NSN 5990-01-612-5323
NSN 6645-00-646-6631