O-Rings
Other articles of plastics and articles of other materials of headings 3901 to 3914: > Other: > Gaskets, washers and other seals > O-Rings
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified 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.
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.
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.
Silicone O-Ring for Medical Device Connectors
Medical-grade silicone (polysiloxane) O-ring sealing tubing connectors in respiratory equipment. HTS 3926.90.4510 applies as plastic seal from heading 3910 silicones. Biocompatible for FDA-regulated devices.
Nylon 6,6 O-Ring for Electrical Enclosures
Polyamide 6,6 (nylon) O-ring providing IP67 sealing for outdoor electrical junction boxes. Classified under 3926.90.4510 as plastic O-ring from polyamide polymers in 3908.10.
EPDM-Like Plastic O-Ring for HVAC Systems
Plastic polymer O-ring mimicking EPDM properties for sealing HVAC compressor fittings, weather-resistant. HTS 3926.90.4510 for plastic seals. Used in air conditioning units.