The Hose,air Duct, cataloged under National Stock Number 4720-01-189-0878, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Bae Systems (operations) Limited. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Manufacturers | Bae Systems (operations) Limited (CAGE U9143) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-189-0878 |
| Primary Part Number | 75A837189-2001 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bae Systems (operations) Limited |
| 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 |
|---|---|
| 75A837189-2001 | Bae Systems (operations) Limited (GBR) |
| 75A837189 | Bae Systems (operations) Limited (GBR) |
| Reference | Meaning |
|---|---|
| 75A837189 | 5/9 Secondary reference British Aerospace (military Aircraft & Aerostructures) |
| 75A837189-2001 | 3/9 Design control — primary reference British Aerospace (military Aircraft & Aerostructures) |
| 75A837189-2001 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems Plc |
NSN 4720-01-189-0878 is a Hose,air Duct, manufactured by Bae Systems (operations) Limited, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-189-0878 has 2 manufacturer part numbers on file: 75A837189-2001 (Bae Systems (operations) Limited), 75A837189 (Bae Systems (operations) Limited).
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.