Rhomboid Prism for Periscopes from Canada
Mounted rhomboid prism that displaces line of sight laterally in periscope optical systems. Classified HTS 9002.90.20.00 as mounted prism for navigational instruments. Maintains image orientation while offsetting optical axis.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• ITAR restrictions apply to military periscope applications
• Displacement distance specifications define prism geometry
• Housing material (invar for thermal stability) affects duty calculations