Twisted Ferrite Core Rope Memory from China
Twisted wire rope memory using ferrite cores threaded through fired ceramic bobbins for aerospace technical applications. HTS 6909.19.10.00 applies as ceramic wares specifically for ferrite core memories in chemical or technical uses. This radiation-hardened design was common in space missions.
Duty Rate — China → United States
35%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Certify inorganic nonmetallic composition and firing process to meet Chapter 69 raw material requirements
• For aerospace imports, prepare ITAR/EAR documentation alongside HTS classification proofs
• Avoid pitfall of declaring as 'parts of computers' without specifying ceramic technical nature