Armstrong A4AC6 Service Valve Assembly from Japan
The Armstrong A4AC6 service valve assembly allows refrigerant charging, evacuation, and pressure testing on air conditioning condensing units while maintaining system integrity. Classified under HTS 8415.90.80 as access fittings for temperature/humidity control elements.
Duty Rate — Japan → United States
11.4%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Schrader vs flare connections require specific torque specs documentation
• Pressure/temperature ratings must match system design pressures (700psi+)
• Cap seals and o-ring materials affect leak rate certifications