O-Rings
Other articles of vulcanized rubber other than hard rubber: > Other: > Gaskets, washers and other seals: > Other > 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 4016.93.50.10
Nitrile O-Ring for Automotive Fuel Injectors
A vulcanized nitrile rubber O-ring designed for sealing fuel injector connections in gasoline engines. It falls under HTS 4016.93.50.10 as an O-ring, which is a specific type of gasket, washer, or seal made from vulcanized rubber other than hard rubber. The circular cross-section and sealing function classify it here.
Viton O-Ring for Hydraulic Cylinder Seals
High-temperature resistant Viton (FKM) O-ring used in hydraulic cylinders for heavy machinery. Classified under HTS 4016.93.50.10 due to its vulcanized rubber composition and role as a precision seal with circular cross-section. Excludes hard rubber per Chapter 40 notes.
Silicone O-Ring for Plumbing Fixtures
Flexible silicone rubber O-ring for sealing faucet and valve connections in residential plumbing. It qualifies under HTS 4016.93.50.10 as a vulcanized rubber seal (O-ring) not covered by exclusions like Chapter 64 footwear. Food-grade variants common for potable water systems.
EPDM O-Ring for HVAC Compressor
Weather-resistant EPDM rubber O-ring sealing refrigerant lines in air conditioning compressors. Falls under HTS 4016.93.50.10 as other vulcanized rubber O-rings used for pressure sealing. Not electrical appliances excluded by Chapter notes.
FFKM O-Ring for Chemical Processing Pumps
Perfluoroelastomer (FFKM) O-ring for extreme chemical resistance in industrial pump seals. Classified as HTS 4016.93.50.10 for its vulcanized rubber O-ring form, excluding hard rubber. Handles corrosive acids and high pressures.
Neoprene O-Ring for Marine Engine Seals
Saltwater-resistant neoprene CR O-ring for outboard motor water pump seals. HTS 4016.93.50.10 applies to this vulcanized rubber O-ring gasket not covered by Chapter 89 exclusions. Provides UV and hydrolysis protection.
NBR O-Ring Assortment for General Industrial Use
Standard nitrile butadiene rubber (NBR) O-ring kit in various AS568 sizes for maintenance applications. Falls under HTS 4016.93.50.10 as assorted vulcanized rubber O-rings (other seals). Common in MRO inventories.
Fluorosilicone O-Ring for Aerospace Fuel Systems
Specialty fluorosilicone O-ring for aircraft fuel tank access panels, resistant to jet fuel and extremes. HTS 4016.93.50.10 covers this vulcanized rubber seal as O-ring form. Meets FAA/PMA requirements.
Butyl Rubber O-Ring for Vacuum Chamber Seals
Low-permeation butyl IIR O-ring for maintaining vacuum in semiconductor processing chambers. Classifies under HTS 4016.93.50.10 as vulcanized rubber O-ring seal. Excellent gas impermeability.
HNBR O-Ring for Oilfield Downhole Tools
Hydrogenated nitrile HNBR O-ring for high-pressure seals in oil/gas downhole drilling tools. HTS 4016.93.50.10 for vulcanized rubber O-rings enduring H2S/CO2 environments. API 6A compliant.
ACM O-Ring for Automotive Air Conditioning
Acrylic rubber ACM O-ring for A/C hose fittings resisting R134a refrigerant. Under HTS 4016.93.50.10 as vulcanized rubber automotive seal O-ring. Heat/ozone resistant.
AEM O-Ring for Power Steering Systems
Ethylene acrylic rubber AEM O-ring for power steering rack seals. HTS 4016.93.50.10 vulcanized rubber O-ring automotive application. Superior shear stability.
CR O-Ring for Refrigerator Door Seals
Chloroprene rubber CR O-ring gasket for commercial refrigerator doors. Classifies HTS 4016.93.50.10 as vulcanized rubber seal, not Chapter 94 appliance part.
FKM O-Ring for Medical Pump Seals
Viton FKM O-ring for peristaltic medical infusion pumps. HTS 4016.93.50.10 vulcanized rubber, USP Class VI compliant.
Natural Rubber O-Ring for Water Pumps
NR latex-based O-ring for general water pump shaft seals. HTS 4016.93.50.10 vulcanized natural rubber O-ring.