Classification Details
| NMFC | Description | Class |
|---|---|---|
| 121620.00 | Gas Generating Apparatus: | |
| 121640.00 | Acetylene, in boxes or crates | 125 |
| 121660.00 | Air Meters, Blowers, Pumps, Generating Tanks with fittings for carburizing air, or Weight Boxes (Shells) | 125 |
| 121680.00 | Gasoline or Naphtha: | |
| 121690.00 | Gas Mixers or Mixers and Regulators combined: | |
| 121690.01 | Cast iron or steel, in boxes or crates | 100 |
| 121690.02 | Other than cast iron or steel, in boxes or crates | 125 |
How to Determine Your Class
To find the correct freight class for your shipment:
- Confirm the actual weight of the unit including all packaging, then select the correct weight break for NMFC 121620 to determine whether it rates at Class 100 or 125.
- Choose packaging to match the build: heavy units belong in sturdy crates with internal blocking and bracing; smaller benchtop generators can ship boxed with foam-in-place and capped ports.
- Mark lift points, center of gravity, and orientation arrows on the box or crate, and cap or seal any gas connections to prevent contamination and handling damage.
- List NMFC 121620 and the packaging type (box or crate) on the BOL, include model/serial for identification, and note non-hazardous to streamline carrier acceptance.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Weight-based classification can reduce cost as unit weight crosses the tariff break, rewarding a single well-crated shipment over multiple lighter cartons.
- Non-hazardous status avoids HazMat fees and carrier restrictions, widening capacity options and supporting faster transit commitments.
- Purpose-built crating lowers damage and reclass risk, cutting claims and unexpected fees tied to insufficient packaging or handling issues.
- Clear NMFC 121620 notation speeds quoting and auditing, improving rate accuracy and reducing disputes over freight class or accessorials.