Classification Details
| NMFC | Description | Class |
|---|---|---|
| 39510.00 | Show more | |
| 39510.01 | Less than 1 | 400 |
| 39510.02 | 1 but less than 2 | 300 |
| 39510.03 | 2 but less than 4 | 250 |
| 39510.04 | 4 but less than 6 | 175 |
| 39510.05 | 6 but less than 8 | 125 |
| 39510.06 | 8 but less than 10 | 100 |
| 39510.07 | 10 but less than 12 | 92.5 |
| 39510.08 | 12 but less than 15 | 85 |
| 39510.09 | 15 but less than 22.5 | 70 |
| 39510.10 | 22.5 but less than 30 | 65 |
| 39510.11 | 30 but less than 35 | 60 |
| 39510.12 | 35 but less than 50 | 55 |
| 39510.13 | 50 or greater | 50 |
How to Determine Your Class
To find the correct freight class for your shipment:
- Confirm packaging: these assemblies must ship in boxes. Coil to a safe bend radius, cap threaded ends, and bag lubricated fittings to prevent contamination.
- Determine density for class selection: weigh each box and measure exterior dimensions to calculate pounds per cubic foot. Example: 42 lb in 4.5 cu ft ≈ 9.3 pcf.
- Brace the coil so it does not spring open. Use double‑wall corrugated (ECT 44 or higher) and void fill to keep the conduit from kinking or crushing in transit.
- Document clearly on the BOL: “NMFC 39510, density-based, Item 170,” include piece count, weight, and box size, and mark Non-Hazardous to speed carrier processing.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Optimize freight class via density: right-size coils and packaging to raise pcf when safe, often reducing class and LTL rates without risking bend radius limits.
- Boxed packaging lowers damage risk to conduits and fittings, cutting claims and rework for aerospace, automotive, and machinery supply chains.
- Accurate density and NMFC notation reduce carrier inspections and reclass fees, stabilizing quotes and improving invoice accuracy.
- Non-hazardous status widens carrier options and improves transit speed, supporting just-in-time parts replenishment for MRO and OEM operations.