Nitrile Rubber O-Ring for Automotive Fuel Injectors
A synthetic rubber O-ring made from acrylonitrile-butadiene (NBR) polymer classified under Chapter 39, used to seal fuel injector connections in vehicle engines. It falls under HTS 3926.90.4510 as an O-ring gasket or seal of plastics. Designed for high resistance to oils and fuels in automotive applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made primarily of vulcanized rubber rather than plastic polymers
Rubber seals fall under Chapter 40; plastic polymers stay in 3926 per material composition rules.
If imported as integral part of a pump or compressor assembly
Parts of machinery take the machinery heading 84 if specifically for that equipment, not as separate seals.
If not specifically an O-ring shape, like flat gaskets
O-rings have dedicated subheading 3926.90.4510; other seal shapes go to residual 'Other' in 3926.90.
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
• Verify polymer composition meets 95% monomer content per subheading notes to avoid reclassification to 'Other' plastics
• Provide detailed technical specs and end-use certification to distinguish from rubber O-rings in Chapter 40
Related Products under HTS 3926.90.45.10
Acetal (POM) O-Ring for Water Pump Seals
Polyoxymethylene (acetal/POM) O-ring for sealing automotive water pumps, low moisture absorption. Under 3926.90.4510 as plastic from 3907.40 polymers.
PEEK O-Ring for Aerospace Actuators
Polyetheretherketone (PEEK) high-temp O-ring sealing actuators in aircraft systems. 3926.90.4510 for engineering plastic seals.
PVC O-Ring for Plumbing Fixtures
Polyvinyl chloride (PVC) O-ring sealing compression fittings in plumbing. 3926.90.4510 plastic seal.
Viton Fluoroelastomer O-Ring for Chemical Processing
High-performance O-ring from fluoropolymer (FKM/Viton) for sealing valves in chemical plants, resistant to harsh acids and high temperatures. Classified in 3926.90.4510 as a plastic O-ring seal due to its synthetic polymer base from headings 3901-3914. Ensures leak-proof operation in corrosive environments.
PTFE O-Ring for Hydraulic Cylinder Seals
Polytetrafluoroethylene (PTFE) O-ring providing low-friction sealing in hydraulic cylinders for heavy machinery. Falls under HTS 3926.90.4510 as a plastic seal from polymers of heading 3901-3914. Ideal for high-pressure, non-lubricated applications.
Polyurethane O-Ring for Pneumatic Valves
Cast polyurethane O-ring for sealing pneumatic control valves in automation systems, offering abrasion resistance. Classified as plastic O-ring under 3926.90.4510 from polyurethane polymers in 3909.50. Meets Chapter 39 for other plastic seals.