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NA identification number

NA0323: Model rocket motor

NA0323 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 1.4S.

ID numberNA0323
Hazard class1.4S
Packing groupnot assigned
Label codes1.4S

All §172.101 entries for NA0323

Proper shipping nameClassPGLabels
Model rocket motor1.4S—1.4S

Open any entry for packaging sections, special provisions, air limits and vessel stowage.

What it means

1.4S
Class 1.4S — Explosives. Materials that can explode, burst, or rapidly release energy. Divisions 1.1–1.6 rank the type of hazard, from mass explosion (1.1) to extremely insensitive articles (1.6).

Label codes (column 6): 1.4S → Explosive 1.4S label.

NA numbers are North-America-only identification numbers — not recognized for international transport except to and from Canada.

Example basic description

NA0323, Model rocket motor, 1.4S

Proper shipping name shown without the table's italic descriptive text. Order per §172.202: ID number, proper shipping name, hazard class, packing group. Example only — add technical names, “RQ”, quantities and other elements your shipment requires.

What to check next

  1. Match the name. Compare your SDS Section 14 to the proper shipping names above and pick the row with your packing group.
  2. Read the special provisions on the entry page (§172.102) — they can add limits or exceptions.
  3. Check packaging — the entry page lists the Part 173 sections for exceptions, non-bulk and bulk.
  4. Labels & placards. Placarding depends on class and quantity — see Table 1 vs Table 2.
  5. Emergency response. Find the response guide for NA0323 in the current PHMSA Emergency Response Guidebook.
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Common questions about NA0323

What is NA0323?

NA0323 is the identification number for Model rocket motor in the DOT Hazardous Materials Table (49 CFR §172.101).

What hazard class is NA0323?

NA0323 is listed under hazard class 1.4S (explosives).

What packing group is NA0323?

Packing group for NA0323: not assigned. Where several rows exist, the packing group that fits your material decides which row applies.

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Source: Hazardous Materials Table (49 CFR §172.101), eCFR.gov — current as of Oct 23, 2026. View the official table. Reference only — verify current requirements before shipping.