The Fan,vaneaxial, cataloged under National Stock Number 4140-01-149-4802, 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 Dynamic Air Engineering, Inc.. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-149-4802 |
| Primary Part Number | M3921B-1A |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Dynamic Air Engineering, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 8 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | THREE |
| Frequency in Hertz | 400.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 5.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 208.0 AC |
| Flow Direction | OUTWARD |
| Housing Inside Diameter | 3.720 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.080 HORSEPOWER |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | -54.0 CELSIUS AND 85.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 5600.0 |
| Surface Treatment | ANODIZE OVERALL |
| Environmental Protection | VIBRATION PROOF |
| Material | ALUMINUM OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Electrical Connection Type | CONNECTOR |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 130.000 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| V25W4G-1 | Ashland Electric Products Inc (USA) |
| BT2307V | Curtiss-Wright Controls Integrated Sensing, Inc. (USA) |
| M3921B-1A PRIMARY | Dynamic Air Engineering, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 978083-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
| 978083-1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 4140-01-149-4802 is a Fan,vaneaxial, manufactured by Dynamic Air Engineering, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-149-4802 has 3 manufacturer part numbers on file: V25W4G-1 (Ashland Electric Products Inc), BT2307V (Curtiss-Wright Controls Integrated Sensing, Inc.), M3921B-1A (Dynamic Air Engineering, Inc.).
Key specifications for M3921B-1A: Mounting Facility Type and Quantity: 8 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: THREE; Frequency in Hertz: 400.0. 22 specifications are documented in the U.S. Government catalog.
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.