Reaction Control System Thruster Valve from Japan
High-response solenoid or piezoelectric valve controlling hypergolic propellant flow in spacecraft reaction control thrusters for attitude control. Part of small reaction engines under HTS 8412.90.9050.
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
• Specify response time (<10ms) and propellant compatibility (hydrazine, etc.) to confirm RCS application
• Space-qualified certifications (NASA/ESA standards) strengthen classification as reaction engine parts
• Prevent classification as generic valves by including thrust chamber integration details