The Fan,tubeaxial, cataloged under National Stock Number 4140-01-477-3057, 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 Leonardo S.p.a Land & Naval Defence Electronics Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-477-3057 |
| Primary Part Number | 71B410P004 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Leonardo S.p.a Land & Naval Defence Electronics Division |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED INSERT |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Inclosure Type | PARTIALLY INCLOSED |
| Length | 3.090 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 208.0 AC OR 230.0 AC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 5.000 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 25.0 WATTS AND 30.0 WATTS |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | 32.0 FAHRENHEIT AND 248.0 FAHRENHEIT DEGF |
| Operating Speed at Rated Capacity in RPM | 2820.0 AND 3310.0 |
| Material | ALUMINUM ALLOY OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | SLEEVE |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 218.0 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 |
|---|---|
| 71B410P004 | Leonardo S.p.a Land & Naval Defence Electronics Division (ITA) |
| Reference | Meaning |
|---|---|
| 035193 | 3/2 Design control — primary reference U.S. Government activity |
| ML9FL-220AC-N-1791Y | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-477-3057 is a Fan,tubeaxial, manufactured by Leonardo S.p.a Land & Naval Defence Electronics Division, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-477-3057 has 1 manufacturer part number on file: 71B410P004 (Leonardo S.p.a Land & Naval Defence Electronics Division).
Key specifications for 71B410P004: Mounting Facility Type and Quantity: 4 THREADED INSERT; Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 50.0 AND 60.0. 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.