Twisted Ferrite Core Rope Memory from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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