The Gearbox Assembly,aircraft, cataloged under National Stock Number 1680-01-508-8836, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Safran Electronics & Defense (ex Safran Electronics & Defense Cockpit Solutions). The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Gearbox Assembly,aircraft |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | The Boeing Company (CAGE 77272); Safran Electronics & Defense (ex Safran Electronics & Defense Cockpit Solutions) (CAGE F0214) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-508-8836 |
| Primary Part Number | 4389506 |
| Item Name | Gearbox Assembly,aircraft |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Safran Electronics & Defense (ex Safran Electronics & Defense Cockpit Solutions) |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 901-320-602-146 | The Boeing Company (USA) |
| 4389506 PRIMARY | Safran Electronics & Defense (ex Safran Electronics & Defense Cockpit Solutions) (FRA) |
| Reference | Meaning |
|---|---|
| 901-320-602-146 | 5/9 Secondary reference Bell Boeing Joint Project Office |
NSN 1680-01-508-8836 is a Gearbox Assembly,aircraft, manufactured by Safran Electronics & Defense (ex Safran Electronics & Defense Cockpit Solutions), classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-508-8836 has 2 manufacturer part numbers on file: 901-320-602-146 (The Boeing Company), 4389506 (Safran Electronics & Defense (ex Safran Electronics & Defense Cockpit Solutions)).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-01-508-8836 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.