The Fan,tubeaxial, cataloged under National Stock Number 4140-01-022-3929, 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 Honeywell International Inc. Dba Honeywell Div Aerospace-Morristown. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Fan,tubeaxial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Honeywell International Inc. Dba Honeywell Div Aerospace-Morristown (CAGE 017N4); Curtiss-Wright Controls Integrated Sensing, Inc. (CAGE 04320) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-022-3929 |
| Primary Part Number | 2129521-9 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Honeywell International Inc. Dba Honeywell Div Aerospace-Morristown |
| 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 |
|---|---|
| 2129521-9 PRIMARY | Honeywell International Inc. Dba Honeywell Div Aerospace-Morristown (USA) |
| BC2206F-6 | Curtiss-Wright Controls Integrated Sensing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2129521-9 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| BC2206F-6 | 5/9 Secondary reference U.S. Government activity |
| 2129521-9 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 4140-01-022-3929 is a Fan,tubeaxial, manufactured by Honeywell International Inc. Dba Honeywell Div Aerospace-Morristown, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-022-3929 has 2 manufacturer part numbers on file: 2129521-9 (Honeywell International Inc. Dba Honeywell Div Aerospace-Morristown), BC2206F-6 (Curtiss-Wright Controls Integrated Sensing, Inc.).
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.