The Cold Air Unit,aircr, cataloged under National Stock Number 1680-01-504-0379, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Vertex Modernization and Sustainment Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Cold Air Unit,aircr |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (CAGE U1605); Vertex Modernization and Sustainment Llc (CAGE 072E5) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-504-0379 |
| Primary Part Number | 350HN4604 |
| Item Name | Cold Air Unit,aircr |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Vertex Modernization and Sustainment Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1764D000-002 | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR) |
| 1764D000-001 | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR) |
| 350HN4604 PRIMARY | Vertex Modernization and Sustainment Llc (USA) |
NSN 1680-01-504-0379 is a Cold Air Unit,aircr, manufactured by Vertex Modernization and Sustainment Llc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-504-0379 has 3 manufacturer part numbers on file: 1764D000-002 (Honeywell Aerospace Yeovil Div Aerospace -Yeovil), 1764D000-001 (Honeywell Aerospace Yeovil Div Aerospace -Yeovil), 350HN4604 (Vertex Modernization and Sustainment 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.
NSN 1680-01-504-0379 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.