Gaskets, washers and other seals
Other articles of plastics and articles of other materials of headings 3901 to 3914: > Other: > Gaskets, washers and other seals
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)
Subheadings
Products classified under HTS 3926.90.45
Automotive Silicone Valve Cover Gasket
A flexible silicone gasket designed to seal the valve cover on internal combustion engines, preventing oil leaks. Classified under HTS 3926.90.45 as it is a plastic gasket used for sealing purposes in automotive applications. Made from silicone polymer meeting the chapter's polymer classification rules.
PVC Plumbing Washer Set
Flat ring-shaped washers made from polyvinyl chloride (PVC) used in pipe fittings to create watertight seals. Falls under HTS 3926.90.45 due to its function as a plastic washer for sealing in plumbing systems. Polymer content meets subheading note (a)(1) for PVC predominance.
Nitrile Rubber-Like Plastic O-Ring Seals
Circular cross-section O-ring seals made from synthetic nitrile-based plastic copolymer for hydraulic systems. Classified in 3926.90.45 as plastic seals where the named copolymer units exceed 95% by weight per subheading note (a)(2).
PTFE High-Pressure Washer
Teflon (PTFE) washers for high-pressure valves and fittings, offering chemical resistance and low friction. Falls under 3926.90.45 as a fluoropolymer plastic washer per polymer predominance rules.
Nylon Fuel Injector O-Ring
Polyamide (nylon) O-rings for sealing fuel injector connections in automotive systems. Classified as plastic seals under 3926.90.45 with polyamide-6,6 content over 95%.
Silicone Toilet Tank Gasket
Molded silicone gasket sealing toilet tank to bowl connection, preventing water leaks. HTS 3926.90.45 for household plastic gaskets, excluding photo albums per note.
Polyurethane Hydraulic Cylinder Seal
U-cup seals from polyurethane for hydraulic cylinders in industrial machinery. Plastic seal classification under 3926.90.45 based on polymer weight predominance.
Acrylic Window Gasket Profile
Extruded acrylic plastic gaskets for sealing residential window frames. 3926.90.45 as plastic seals not classifiable as profiles under 3916 due to sealing function.
EPDM-Like Plastic Door Weatherseal
Plastic weatherstripping seals mimicking EPDM properties for vehicle doors. Classifies as plastic gasket under 3926.90.45 per copolymer rules.
Polycarbonate Electrical Box Gasket
Gaskets for NEMA enclosures made from polycarbonate plastic for weatherproof electrical boxes. 3926.90.45 as plastic seals for electrical equipment.
TPE Compression Molded Gasket
Thermoplastic elastomer (TPE) gaskets molded for industrial compressors. Plastic classification under 3926.90.45 as copolymer predominates.
ABS Pressure Vessel Seal
Acrylonitrile-butadiene-styrene (ABS) seals for low-pressure plastic vessels. Meets 3926.90.45 as copolymer where no single monomer exceeds predominance without 'Other' subheading.
POM Precision Washer
Polyoxymethylene (POM/acetal) precision washers for mechanical assemblies requiring tight tolerances. Plastic washer under 3926.90.45 with POM monomer >95%.
Plasticized PVC Gasket with Secondary Plasticizers
Flexible PVC gaskets containing secondary plasticizers for enhanced performance in outdoor applications. Classifies under 3926.90.45; plasticizer definition includes secondary types per subheading note.
Polyethylene Flange Gasket
Full-face gaskets cut from high-density polyethylene sheets for sealing pipe flanges in low-pressure systems. HTS 3926.90.45 applies as a plastic gasket with polyethylene monomer units at 97% by weight.