Rocket Engine Heat Shield Liner from Japan
Ablative or ceramic thermal protection liner that shields rocket engine structures from combustion chamber temperatures exceeding 3000°C. Covered by HTS 8412.90.9050 as protective parts of reaction engines.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide ablation rate and temperature profile test data to verify rocket combustion protection function
• Specify material composition (phenolics, carbon-carbon) matching rocket engine requirements
• Document as 'engine-specific' to avoid generic refractory material classification