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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered inner tube repair patch material
Pneumatic tire tubes and repairs have specific heading 4013.
If precision-machined sealing ring function
Certain machined gaskets shift to Chapter 84 provisions.
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Import Tips & Compliance
• FAA PMA/STC documentation mandatory; ITAR/EAR export control verification
• AMS specifications (e.g
• AMS-R-6856) confirm rubber classification
• Cleanroom packaging preserves critical aerospace cleanliness standards
Related Products 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.