The Duct,supply,insulat, cataloged under National Stock Number 1680-01-543-9931, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Triumph Engine Control Systems Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Duct,supply,insulat |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | The Boeing Company Div Defense (CAGE 76301); Triumph Engine Control Systems Llc (CAGE 11599) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-543-9931 |
| Primary Part Number | E601190500 |
| Item Name | Duct,supply,insulat |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| E601190500 | The Boeing Company Div Defense (USA) |
| E601190500 PRIMARY | Triumph Engine Control Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| E601190500 | 5/9 Secondary reference Triumph Thermal Systems - Maryland, Inc. |
NSN 1680-01-543-9931 is a Duct,supply,insulat, manufactured by Triumph Engine Control Systems Llc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-543-9931 has 2 manufacturer part numbers on file: E601190500 (The Boeing Company Div Defense), E601190500 (Triumph Engine Control Systems Llc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.