NMFC 166790 - Rail track frogs, iron or steel | Class 50

To find the correct freight class for your shipment:

1. List the item as: "Rail track frogs, iron or steel, NMFC 166790, Class 50" on the BOL to prevent reclass and speed up rating.
2. Secure heavy cast or fabricated frogs on hardwood dunnage with steel banding; block the nose and wing areas to protect machined surfaces.
3. Plan loading for weight and center of gravity; provide 4-way forklift access or arrange crane pickup for units exceeding typical liftgate limits.
4. Bundle similar lengths and tag each piece with weight and contact info; add “Do Not Top-Stack” labels to avoid damage from decked freight.

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

• Fixed Class 50 simplifies quoting and reduces variance from density-based ratings, improving cost predictability for track projects.
• Dense iron/steel construction benefits from lower-class pricing, helping rail contractors and fabricators secure competitive LTL freight rates.
• Clear NMFC identification limits carrier reclass fees and accessorial disputes, protecting margins on heavy infrastructure components.
• Non-hazardous status avoids hazmat surcharges and special documentation, streamlining transit and shortening procurement lead times.