Classification Details
| NMFC | Description | Class |
|---|---|---|
| 172420.00 | Sash Parts or Window Frame Parts, airplane or railway car, in boxes or crates | 100 |
How to Determine Your Class
To find the correct freight class for your shipment:
- List the full NMFC on your BOL: “Sash Parts or Window Frame Parts, airplane or railway car, boxed/crated — NMFC 172420, Class 100” to prevent reclass.
- Match packaging to geometry: crate long extrusions or assembled frames with end-blocking and foam edge guards; use heavy-wall boxes with interior dividers for small kits.
- Protect finishes and combat corrosion: wrap anodized aluminum or painted steel with non-abrasive film and VCI paper; add desiccant for humid routes.
- Mark handling clearly: apply Do Not Stack where needed, show lift points on crates, and indicate orientation to avoid twist or bow damage during cross-docking.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Fixed Class 100 simplifies rating and quoting—no density calculations and fewer reweigh or reclass fees.
- Proper boxing or crating minimizes damage and claims on high-value OEM and MRO window assemblies and components.
- Accurate NMFC usage speeds terminal handling and reduces carrier disputes, protecting tight hangar and rail yard maintenance schedules.
- Predictable class supports stable LTL rates and cleaner TMS rules, improving cost control across supplier-to-plant and depot lanes.