U.S. imports of parts for mechanical spraying, blasting & fire extinguisher appliances (HS 842490) totaled $86.6M in August 2026, imported from 72 countries.
Importers of Parts for Mechanical Spraying, Blasting & Fire Extinguisher Appliances paid $10.3M in duties in August 2026, an effective tariff rate of 11.85% of the $86.6M imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataAftermarket and OEM replacement parts for the full range of mechanical projecting and spraying equipment — from fire extinguisher components (8424900500) to sand blasting machine parts (8424902000) and general spray appliance parts (8424909080) — are consolidated under this heading. China and Mexico are the leading suppliers, with Germany, Canada, and Japan also significant. Because parts lines often carry different duty rates and Section 301 exposure than the parent machines, importers should resist the temptation to classify a part under the complete-machine heading; the correct line depends on which parent machine the part is designed for. Detailed technical drawings and supplier declarations identifying the parent machine are best practice for audit readiness.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
5.2K shipments/mo
When a part is designed for use with a specific type of machine (e.g., fire extinguishers or sand blasting machines), it should be classified under the dedicated parts line for that machine — 8424900500 or 8424902000, respectively. Truly interchangeable parts with no principal-use association fall under the residual lines such as 8424909080 or 8424909500. Supplier documentation identifying the intended parent machine is the most reliable basis for classification.
Nozzles and spray tips designed specifically for use with spray guns or other appliances under heading 8424 are generally classified as parts under 8424.90 rather than as separate articles. However, nozzles with a broader industrial application — such as fluid-handling nozzles used across multiple equipment types — may be classified elsewhere in Chapter 84 or in Chapter 73 (iron or steel fittings). The principal-use test and the article's design specificity are the determining factors.
HSChapter 84
Subheading 1 of 8 in heading 8424
Subheading 842490 · $86.6M of $277.0M
ImportsExports
Imports
$86.6MYoY · free account
Exports
$96.7MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $1.0B of Parts for Mechanical Spraying, Blasting & Fire Extinguisher Appliances.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8424909080 | Pts of Project/Disperse/Spray Mech Appliance,NESOI | $74.0M | 11.70% | 72.83% | $8.7M |
| 8424900500 | Parts of Fire Extinguishers | $4.3M | 11.00% | 73.93% | $471K |
| 8424909020 | Parts of Steam and Jet Projecting Machines, NESOI | $3.9M | 12.19% | 88.77% | $480K |
| 8424902000 | Parts of Sand Blasting Machines | $1.8M | 11.43% | 65.55% | $207K |
| 8424909010 | Parts of Steam/Jet Projecting Machines, Gas Powerd | $1.4M | 19.43% | 99.65% | $272K |
| 8424901000 | Parts of Simple Piston Pump Sprays & Powder Bellow | $1.2M | 14.73% | 84.67% | $177K |
| 8424909040 | Parts of Steam and Similar Jet Projecting Machines | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8424909500 | Parts,NESOI,of Mech Appl F Spray,Etc,Liq NESOI | $87.1M |
| 8424909040 | Parts of Steam and Similar Jet Projecting Machines | $6.8M |
| 8424902000 | Parts of Sand Blasting Machines | $2.8M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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Imports · August 2026
origin
China pays 18.8% duty; Mexico 1.2%.
customs district
destination
entry
rate provision · imports
23.8% enters free of duty; duty collected equals 11.85% of total import value.