Rhomboid Prism for Periscopes
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of complete submarine periscope
Complete optical instruments classify separately from components.
If tank commander periscopes
Chapter note 5 excludes vehicle periscope optics from 9005.
If basic displacement prisms without mounting
Unmounted status changes to general optical elements.
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Import Tips & Compliance
• ITAR restrictions apply to military periscope applications
• Displacement distance specifications define prism geometry
• Housing material (invar for thermal stability) affects duty calculations
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