The Fan,tubeaxial, cataloged under National Stock Number 4140-00-142-1130, 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 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-142-1130 |
| Primary Part Number | M4381B-9A |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Dynamic Air Engineering, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 RIM AND 4 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Inclosure Type | FULLY INCLOSED |
| Length | 3.880 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 26.0 DC |
| Flow Direction | OUTWARD |
| Housing Inside Diameter | 4.500 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 1.640 HORSEPOWER |
| Style Designator | FIXED |
| Features Provided | NONSPARKING |
| Ambient Temp at Full Rated Power | -55.0 CELSIUS AND 71.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 5000.0 |
| Surface Treatment | CADMIUM HOUSING |
| Material | STEEL HOUSING |
| Material | ALUMINUM BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | TERMINAL |
| Air Flow Rate | 138.000 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 |
|---|---|
| M4381B-9A PRIMARY | Dynamic Air Engineering, Inc. (USA) |
NSN 4140-00-142-1130 is a Fan,tubeaxial, manufactured by Dynamic Air Engineering, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-142-1130 has 1 manufacturer part number on file: M4381B-9A (Dynamic Air Engineering, Inc.).
Key specifications for M4381B-9A: Mounting Facility Type and Quantity: 1 RIM AND 4 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Inclosure Type: FULLY INCLOSED; Length: 3.880 INCHES NOMINAL IN. 21 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.