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Hazmat UN Number Lookup
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🏷️ Primary Hazard Class Filter
UN0376
Primers, tubular
Explosives
Class 1.4S (Primary)Class None (Subsidiary)
CAS RegistryN/A
Hazchem / EAC2Z
ERG Guide Number112
49 CFR Placards & Labels
Not listed as a Reportable Quantity (RQ) hazardous substance under §172.101 Appendix A.
Not listed as a Marine Pollutant under §172.101 Appendix B.
Regulatory Facts
Packing Group
—
Symbols (col 1)
—
Labels (col 6)
None
PIH Zone
—
Packaging references (49 CFR §173.xxx)
Exceptions (col 8A)
None
Non-Bulk (col 8B)
§173.62
Bulk (col 8C)
None
Aircraft quantity limits (col 9)
Passenger / Rail (9A)
25 kg
Cargo Aircraft Only (9B)
100 kg
Vessel stowage (col 10)
Location (10A)
01
Other codes (10B)
25
Special provisions (col 7 — §172.102)
—Hazard Classification & Risks
Class 1 — Explosive. Substance or article capable of a mass-explosion, projection, or fire/blast hazard (49 CFR §173.50).
Transport Regulations
Hazard class 1.4S. Placard/label codes: None. Packaging (49 CFR §173): exceptions §None, non-bulk §62, bulk §None. Quantity limits: passenger aircraft/rail 25 kg, cargo aircraft only 100 kg. Vessel stowage: 01 (other: 25). Classified per 49 CFR §172.101.
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Source & sourcing note
Regulatory data mirrors the U.S. 49 CFR §172.101 Hazardous Materials Table and companion columns (packaging, quantity limits, vessel stowage, special provisions) as published by the U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA).
Emergency-response content is drawn from the 2024 Emergency Response Guidebook (ERG), a joint publication of PHMSA, Transport Canada, and Mexico’s SCT.
The U.S. edition of the ERG and all U.S. federal regulations are public-domain works under 17 U.S.C. §105. Descriptions on this page are plain-English paraphrases; for any compliance decision, consult the authoritative text on eCFR Title 49 and the ERG at PHMSA.dot.gov. “ERG™” is attributed to PHMSA / Transport Canada / SCT and used nominatively.