Solid Rocket Motor Combustion Chamber from Japan
High-strength steel combustion chamber for solid propellant rocket motors, containing the burning propellant to produce high-pressure gases. Classified under HTS 8412.90.9050 as a core part of reaction engines other than turbojets used in space and defense applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include propellant compatibility test reports and pressure ratings in import documentation to substantiate reaction engine use
• Check for dual-use restrictions under Wassenaar Arrangement; may require end-user certificates
• Label clearly as 'not for turbojet engines' to prevent reclassification during customs review