NMFC 177060 - Spark Arresters in Packages | Class 150

To find the correct freight class for your shipment:

1. Protect vulnerable ends: cap threaded or flanged connections and shield internal screens with end guards or foam collars before boxing.
2. Use sturdy corrugated cartons with snug foam or honeycomb pads; bag small hardware (clamps, bolts, gaskets) to prevent rattling that can crush mesh.
3. If carbon-steel bodies are involved, add VCI wrap or desiccant to combat moisture during long hauls or coastal deliveries.
4. Palletize tight: no overhang, corner boards plus stretch wrap and two bands. Keep individual cartons under ~40 lb where possible to reduce crush risk.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

• Predictable costs with fixed Class 150—no density math or reclass surprises for packaged spark arresters.
• Non-hazmat status broadens carrier options and supports faster tendering in LTL networks.
• Damage reduction from proper end caps and internal bracing cuts returns for bent flanges or collapsed screens.
• Clear NOI wording streamlines quoting and minimizes misidentification with mufflers or catalytic components.