Copper Vacuum Vessel Evacuation Valve from Japan
A small copper valve used during manufacturing to evacuate air from vacuum flasks, creating the insulating vacuum. Falls under HTS 9617.00.60.00 as a specialized part of vacuum vessels, excluding glass inners.
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
• Supply technical drawings illustrating vacuum creation function to justify Chapter 96 classification
• Ensure valves meet pressure vessel standards if applicable, with material safety data sheets
• Invoice separately from assembly tools to avoid classification as machinery parts