Fuel Injector O-Rings
Vulcanized Viton O-rings sealing fuel injector nozzles in diesel engines. HTS 4016.93.50 for other gaskets/washers, fuel-resistant fluoroelastomer. Not hard rubber or Chapter 84 engine parts.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts of diesel engines
Engine-specific parts classify under Chapter 84.
If inner tubes or tire-related
Certain automotive rubber tubes shift to heading 4013.
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Import Tips & Compliance
• TSCA certification for chemical resistance claims
• OEM part numbers help but don't override material-based classification
• Watch for CARB emissions compliance labeling
Related Products under HTS 4016.93.50
Automotive Engine Gasket Set
A set of vulcanized rubber gaskets designed for sealing engine components in passenger vehicles, preventing oil and coolant leaks. Classified under HTS 4016.93.50 as other gaskets not specified elsewhere, distinct from hard rubber and excluding conveyor belts or tires. Made from synthetic rubber compounds for high-temperature resistance.
HVAC System Washer Seals
Vulcanized rubber washers and seals used in air conditioning units for duct connections and compressor housings. Falls under HTS 4016.93.50 as other unspecified gaskets and seals of vulcanized rubber, not hard rubber. Ensures airtight and watertight joints in residential HVAC equipment.
Plumbing Pipe O-Ring Seals
Circular vulcanized rubber O-rings for sealing threaded pipe joints in residential plumbing systems. Classified in HTS 4016.93.50 as other gaskets, washers, and seals, made from nitrile or EPDM rubber for water resistance. Prevents leaks in PVC or metal pipe connections.
Industrial Pump Gaskets
Flat vulcanized rubber gaskets for flange connections on centrifugal pumps in chemical processing plants. HTS 4016.93.50 covers these as other unspecified seals, using neoprene for corrosion resistance. Not hard rubber and excludes Chapter 84 pump parts.
Window Glass Rubber Seals
Extruded vulcanized rubber seals for framing automotive or building window glass, providing weatherproofing. Under HTS 4016.93.50 as other gaskets and seals, EPDM compound for UV resistance. Excludes hard rubber and textile-covered profiles.
Hydraulic Cylinder Seals
U-cup and piston seals of vulcanized rubber for hydraulic cylinders in heavy machinery. HTS 4016.93.50 for other non-hard rubber seals, polyurethane-blend for high pressure. Distinct from machinery parts in Chapter 84.