Mounted BK7 Prism Assembly from Mexico
Precision mounted BK7 glass right angle prism for periscopes, borescopes, and alignment lasers. Despite glass material, complex mounting for instruments classifies HTS 9002.90.95.00 'other'. Total internal reflection optics.
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
• Justify 'other' classification vs. specific glass prism codes with mounting complexity
• Include Abbe number and index of refraction specs
• Blackened edges prevent stray light reflection