Nylon Rigid Capillary Tubes
Rigid polyamide-6 (nylon) capillary tubes <200 mm for medical fluid transfer and instrumentation. Classified 3917.29.00.50 for rigid tubes of other plastics like polyamides.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If flexible polyamide hoses
Flexibility moves to flexible tubes subheadings.
If as fittings or mounts for devices
Plastic office/machine fittings exclude tubes.
If integral to medical instruments
Parts/accessories of medical instruments principal use over material.
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
• Comply with FDA regs for medical use; include sterilization certs
• Specify inner diameter and rigidity to differentiate from hoses
• Avoid chemical modification claims; unmodified nylon stays specific
Related Products under HTS 3917.29.00.50
Acrylic Rigid Tubing Cutoffs
Polymethyl methacrylate (acrylic) rigid tubing pieces less than 200 mm long, used in aquariums, displays, and lab equipment. Falls under HTS 3917.29.00.50 for rigid tubes of other plastics, distinguished by predominant monomer unit per subheading notes.
Polystyrene Rigid Straw Tubes
Rigid polystyrene tubes less than 200 mm, used as industrial straws or sample transport in labs. HTS 3917.29.00.50 applies to rigid tubes of styrene polymers as 'other plastics'.
Polypropylene Short Rigid Pipes
Wait, no—PP is 3917.22. But for copolymer blends where PP <95%, short rigid polypropylene-blend pipes <200 mm for chemical transport. Fits 3917.29.00.50 per note (a)(4) predominant monomer rule.
Rigid Fluoropolymer Tubes
Rigid PVDF (polyvinylidene fluoride) tubes <200 mm for corrosive chemical handling. HTS 3917.29.00.50 as rigid tubes of other plastics (fluoropolymers).
ASA Rigid Plumbing Stubs
Acrylonitrile-styrene-acrylate (ASA) copolymer rigid stubs <200 mm for outdoor plumbing. 3917.29.00.50 for rigid other plastics copolymers.
Rigid SAN Test Tubes
Styrene-acrylonitrile (SAN) rigid open tubes <200 mm for lab testing. Classed 3917.29.00.50 rigid other plastics.