40X47X4 is a National multi-purpose seal in an industrial size of 1.575 x 1.850 x 0.157. 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 40X47X4Industrial seal size 1.575 x 1.850 x 0.157Genuine National partTech SpecsSeal size: 1.575 x 1.850 x 0.157