The Fan,centrifugal, cataloged under National Stock Number 4140-00-445-3944, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-445-3944 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Outlet Location | BOTTOM |
| Mounting Facility Type and Quantity | 1 CLAMP RING(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 3.656 INCHES NOMINAL IN |
| Length | 8.719 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.487 HORSEPOWER |
| Quantity | 1 |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Diameter | 4.500 INCHES NOMINAL IN |
| Ambient Temp at Full Rated Power | 65.0 CELSIUS DEGC |
| Discharge Direction | VERTICAL DOWN |
| Outlet Inside Width | 3.343 INCHES NOMINAL IN |
| Height | 7.469 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 3400.0 |
| Surface Treatment | ZINC BLADE |
| Surface Treatment | ENAMEL HOUSING OUTSIDE |
| Surface Treatment | ENAMEL HOUSING INSIDE |
| Environmental Protection | CORROSION RESISTANT AND SHOCK PROOF AND VIBRATION PROOF |
| Width | 9.750 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 023408 | 3/2 Design control — primary reference U.S. Government activity |
| 1999624 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| ARDPN-KS4503CCW-250AF | 5/9 Secondary reference U.S. Government activity |
| A0-27993 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-445-3944 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-00-445-3944: Outlet Location: BOTTOM; Mounting Facility Type and Quantity: 1 CLAMP RING(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE. 30 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.