Classification Details
| NMFC | Description | Class |
|---|---|---|
| 177940.00 | Springs, NOI: | |
| 177950.00 | Brass, bronze or copper, in boxes or drums | 92.5 |
| 177960.00 | Steel, other than wire: | |
| 177970.00 | Coiled, made of steel less than 5/16 inch thick: | |
| 177970.01 | In bundles | 85 |
| 177970.02 | In bags, boxes, crates or drums | 70 |
| 177980.00 | Coiled, made of steel 5/16 inch or over in thickness | 55 |
| 178000.00 | Elliptic or semi-elliptic, vehicle or tractor | 55 |
| 178010.00 | Other than coiled, elliptic or semi-elliptic: | |
| 178010.01 | In bundles | 85 |
| 178010.02 | In bags, boxes, crates or drums | 70 |
| 178020.00 | Wire, steel, see Note, item 178022, in packages | 70 |
How to Determine Your Class
To find the correct freight class for your shipment:
- Match your spring type to the correct NMFC subrating. Identify compression, extension, torsion, or formed wire springs and select from the four classes within 55–92.5.
- Prevent coil movement and tangling. Compress or bundle springs, cap sharp ends, and use sleeves or zip ties; example: band torsion pairs with spacers to stop unwinding.
- Choose packaging by size and rigidity. Small runs go in heavy-duty boxes with dividers, while long or dense coils ride best in braced wood crates to protect against puncture.
- Document clearly on the BOL: spring type, count, and packaging (boxes/crates/packages). Density entry isn’t required here, which speeds up rating and reduces inspection delays.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Accurate class selection within 55–92.5 reduces reclass fees and dispute cycles, yielding more precise LTL quotes and fewer invoice surprises.
- Damage prevention steps (bundling, end caps, dividers) cut OS&D claims, protecting margins for equipment builders, door installers, and MRO suppliers.
- Optimizing package type can qualify shipments for lower subratings, improving freight rates on recurring lanes for high-volume spring programs.
- Non-hazardous status broadens carrier options and simplifies booking, often improving transit reliability during tight capacity periods.