HTS code 9817.00.60.00 covers "Parts to be used in articles provided for in headings 8432, 8433, 8434 and 8436, whether or not such parts are principally used as parts of such articles and whether or not covered by a specific provision within the meaning of additional U.S. rule of interpretation 1(c)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.