418303 is a National multi-purpose seal in an industrial size of 7 x 8.507 x 0.625. It is a genuine National part from Pro Gear and Transmission, and we are glad to help you match it to your application.FeaturesNational multi-purpose seal, part number 418303Industrial seal size 7 x 8.507 x 0.625Genuine National partTech SpecsSeal size: 7 x 8.507 x 0.625