The Fan,vaneaxial, cataloged under National Stock Number 4140-01-331-9281, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Airbus Defence & Space 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Airbus Defence & Space Limited (CAGE U4756); Active Electronics Plc (CAGE K6074) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-331-9281 |
| Primary Part Number | RT49PBW00000AAG |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Airbus Defence & Space Limited |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| RT49PBW00000AAG | Airbus Defence & Space Limited (GBR) |
| 028171 | Active Electronics Plc (GBR) |
| Reference | Meaning |
|---|---|
| WR3A1 | 5/9 Secondary reference U.S. Government activity |
| RT49PBW00000AAG | 5/9 Secondary reference Northern Telecom Europe Ltd (integrated Network Division) |
| WR3A1 | 3/9 Design control — primary reference Simonds Inc |
NSN 4140-01-331-9281 is a Fan,vaneaxial, manufactured by Airbus Defence & Space Limited, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-331-9281 has 2 manufacturer part numbers on file: RT49PBW00000AAG (Airbus Defence & Space Limited), 028171 (Active Electronics Plc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-495-2912. Verify interchangeability with system specifications before substitution.
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.