NAS Washers (1/4", 5/16", 3/8", 1/2") Packs of 10

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Aviation grade NAS washers. Typically used under hex nuts for a smooth flat finish or to shim the grip length on an NAS or AN bolt. We use these on all of or parts and kits. Sold i n packs of 10ea. Specs: Cadmium coated Small diameter .059-.067 thickness tolerance spec 1/4" ID .265" OD .500" 5/16" ID .328" OD .562" 3/8" ID .390" OD .625" 1/2" ID .515" OD .875" Options: 1/4" NAS Washer 5/16" NAS Washer 3/8" NAS Washer 1/2" NAS Washer Show more