Porro Prism Binocular Mounting Assembly
Mounting frame for binoculars embedding Porro prisms (9001) and achromatic lenses (9002) for wide-field viewing. HTS 9005.90.40.00 applies to such assemblies incorporating both components as telescope accessories. Used in high-end birding and marine binoculars.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for parts incorporating only lenses from heading 9002
Lens-only incorporating parts have dedicated 9005.90.10 classification.
If featuring mechanical mounts without optical elements
Pure mechanical mountings for optical apparatus classify as machinery parts.
If plastic housings not incorporating any 9001/9002 goods
Non-optical plastic components fall under Chapter 39 plastics.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Optical alignment certificates prevent disputes over 'incorporation' claims
• Avoid bulk packaging that suggests unfinished goods; retail-ready incurs different scrutiny
• Declare exact prism count and lens curvature for accurate valuation
Related Products under HTS 9005.90.40.00
Galilean Prism Telescope Finder
Red-dot finder with Galilean prisms (9001) and erecting lenses (9002) for telescopes. 9005.90.40.00 as incorporating parts for astronomical mountings. Quick alignment tool.
Multi-Coated Prism-Lens Opera Glasses
Compact opera glasses module with prisms (9001) and multi-coated lenses (9002). HTS 9005.90.40.00 for such binocular accessories. Elegant for theater viewing.
Barlowed Prism Erecting System
Erecting system for spotting scopes with Barlow lenses (9002) and prisms (9001). Classified 9005.90.40.00 incorporating both for telescope use. Increases effective magnification.
Helix Prism-Lens Micro-Monocular
Ultra-compact monocular with helix prisms (9001) and aspheric lenses (9002). 9005.90.40.00 as miniature telescope accessory. Pocket-sized for travel.
Field Flattener Prism-Lens Cell
Lens cell for astrographs with field flattener lenses (9002) and prism arrays (9001). HTS 9005.90.40.00 for imaging telescope mountings. Eliminates edge distortion.
Compact Roof Prism Corrective Binoculars Module
Roof prism module with diopter-corrective lenses (9002) for binoculars. 9005.90.40.00 incorporating prisms and lenses as accessories. Waterproof for marine use.