Gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal; sets or assortments of gaskets and similar joints, dissimilar in composition, put up in pouches, envelopes or similar packings; mechanical seals
3 declarable lines
Heading 8484 covers gaskets and similar joints made of metal sheeting combined with other material or of two or more layers of metal, plus sets or assortments of such gaskets put up in pouches, envelopes or similar packings, and mechanical seals. The heading splits three ways: metal-combination gaskets and joints, mechanical seals, and a residual other line. All three lines are fully declared at the 8-digit level, so classification turns on what the article is rather than on further subdivision.
Products in this heading
- Automotive head gasket made of metal sheeting laminated with fiber or rubber facing
- Spiral-wound metal gasket with a soft filler layer for a pipe flange
- Multilayer steel exhaust gasket for an engine manifold
- Mechanical shaft seal (mechanical face seal) for a pump
- Mechanical seal cartridge assembly for a process pump or agitator
- Assortment pack of assorted gaskets of different composition in a pouch or envelope
- Metal-jacketed cylinder head gasket for a diesel engine
- Gasket set for an engine overhaul packed as a matched assortment
How to choose the right subheading
- Whether the article is a static gasket or joint versus a mechanical seal with moving faces
- Whether metal sheeting is combined with another material, or whether two or more layers of metal are used
- Whether the article is a single gasket or a set or assortment of gaskets of dissimilar composition in a pouch or envelope
- Whether the good is a part of general use such as a plain washer rather than a gasket or joint
Often confused with
- Rubber O-rings and molded rubber seals with no metal layer
Vulcanized rubber goods are classified in chapter 40, not in a metal-based gasket heading.
- Heading 7415Plain copper or aluminum washers with no other material and no metal layers
Simple metal washers without combined material or multiple metal layers fall to the base metal heading.
- Gaskets made only of compressed fiber sheet or paperboard
Heading 8484 requires metal sheeting combined with other material or two or more metal layers.
- Heading 8481Valves and cocks with seals fitted to them
The valve itself is classified as a valve; only the separate seal is a heading 8484 article.
- Oil seals and lip seals of rubber with a metal case
These are generally treated as rubber goods; heading 8484 covers gaskets and joints and mechanical seals, not rubber lip seals.
Frequently asked questions
What is the HTS code for a metal multilayer exhaust gasket?
A gasket of metal sheeting combined with other material, or of two or more layers of metal, is classified under 8484.10.00.00 and carries a general (MFN) rate of 2.5%.
What is the duty on a mechanical seal for a pump?
Mechanical seals are classified under 8484.20.00.00 at a general (MFN) rate of 3.9%.
How do I classify a mixed pack of assorted gaskets in an envelope?
Sets or assortments of gaskets dissimilar in composition, put up in pouches, envelopes or similar packings, fall in heading 8484; if the set is not described by the gasket or mechanical seal lines, use the residual line 8484.90.00.00 at a general (MFN) rate of 2.5%.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.