NMFC 51166 – Copper/Brass Expansion Joints | Class 77.5

To find the correct freight class for your shipment:

1. Package soft-metal joints to prevent dents: use foam or corrugated wraps, cap threaded ends, and brace flanged bodies inside sturdy boxes or wood crates.
2. List the commodity clearly on the BOL: “Expansion joints, NOI, copper/brass body, boxed, NMFC 51166, Class 77.5.” This avoids reclass delays and inspection holds.
3. Palletize for LTL: keep cartons upright, no overhang, and block/brace crated assemblies. Avoid stacking heavy valves or steel parts on top of these joints.
4. Skip density calculations—this item rides at a fixed Class 77.5. Provide count of pieces and packaging type (boxes or crates) for fast quoting and pickups.

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

• Predictable rating at Class 77.5 streamlines quoting and cuts reclass fees for copper/brass/bronze expansion joints.
• Correct boxing or crating reduces transit damage on precision alloy fittings, lowering claim risk and return costs.
• One NOI code covers multiple alloys and sizes, enabling SKU consolidation for plumbing, HVAC, and process piping distributors.
• Non-hazardous status avoids hazmat surcharges and special handling, supporting sharper LTL rates and faster dock turns.