The Fan,centrifugal, cataloged under National Stock Number 4140-01-373-5657, 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 26 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-373-5657 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Outlet Location | BOTTOM |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Inclosure Type | PARTIALLY INCLOSED |
| Outlet Inside Height | 1.420 INCHES NOMINAL IN |
| Length | 7.780 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 116.0 WATTS |
| Style Designator | FIXED, INVERTED, RECTANGULAR OUTLET |
| Ambient Temp at Full Rated Power | -55.0 CELSIUS AND 100.0 CELSIUS DEGC |
| Discharge Direction | VERTICAL DOWN |
| Outlet Inside Width | 2.750 INCHES NOMINAL IN |
| Height | 7.220 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 3000.0 |
| Width | 6.650 INCHES NOMINAL IN |
| Material | STEEL BLADE |
| Material | STEEL HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 154.0 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 |
| Reference | Meaning |
|---|---|
| G371701-1 | 5/9 Secondary reference Raytheon Company Div Corp |
| G371701-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
| 020987 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-373-5657 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-373-5657: Outlet Location: BOTTOM; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE. 26 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.