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HSChapter 84
U.S. imports of metallic gaskets and similar joints of metal sheeting combined with other material (HS 848410) totaled $30.9M in April 2026, traded with 47 countries.
Importers of Metallic Gaskets and Similar Joints of Metal Sheeting Combined with Other Material paid $2.7M in duties in April 2026 — an effective duty rate of 13% on $20.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataGaskets combining metal sheeting with non-metallic layers — such as head gaskets used in internal combustion engines — are a critical sealing solution for automotive and industrial OEM and aftermarket supply chains, with Mexico and Japan leading US import supply. All imports under this heading fall under a single 10-digit line (8484100000), so classification disputes typically center on whether an article qualifies as a metallic composite gasket versus a purely non-metallic seal (heading 8484.90) or a mechanical seal (8484.20). The automotive sector's reliance on just-in-time delivery makes supplier concentration and lead-time risk particularly relevant for procurement planners sourcing from Mexico and Japan.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Heading 8484.10 covers gaskets made of metal sheeting combined with other material (e.g., a steel layer bonded to a fiber or elastomer layer) or of two or more layers of metal. A gasket composed entirely of non-metallic material — rubber, cork, or fiber alone — would fall outside this heading. The presence of at least one metal layer that is integral to the sealing function is the key structural criterion.
Although China is not among the top suppliers under this heading, importers sourcing metallic gaskets from China should verify whether Section 301 tariffs apply to the specific 10-digit line 8484100000, as coverage can shift. For the leading sources — Mexico and Japan — no broad trade-remedy measures currently apply to this product, though USMCA origin requirements should be confirmed for Mexican-origin goods.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8484100000 | GASKETS,METAL,2 OR MORE LAYERS,OR WITH OTHER MATL | $30.9M | 13.31% | $2.7M |
GASKETS,METAL,2 OR MORE LAYERS,OR WITH OTHER MATL
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8484100000 | GASKETS,METAL,2 OR MORE LAYERS,OR WITH OTHER MATL | $34.8M |
GASKETS,METAL,2 OR MORE LAYERS,OR WITH OTHER MATL
2.1M no
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $5.2M | $3.1M | -$2.1M |
| CLEVELAND, OH | $1.1M | $3.0M | +$1.9M |
| LONG BEACH, CA | $352K | $3.5M | +$3.2M |