Turbine Interstage Seals from Japan
Labyrinth seals preventing gas leakage between turbine stages in non-aircraft gas turbines for oil & gas compression. Manufactured from abrasion-resistant alloys with precise tooth geometry. HTS 8411.91.90.40 covers non-aircraft turbine sealing parts.
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
• Provide clearance specification charts matching turbine rotor/stator dimensions
• Declare seal tooth geometry critical for classification as turbine-specific
• Avoid generic seal classification under 8484 by proving pressure differential capability