The Fan,centrifugal, cataloged under National Stock Number 4140-01-568-3157, 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 Rotron Incorporated. Government technical data includes 20 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 | 4140-01-568-3157 |
| Primary Part Number | 1952-25 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Rotron Incorporated |
| Status | ACTIVE |
| Outlet Location | TOP OR BOTTOM |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Speed Adjustments | 0 TO FULL SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 6.640 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 208.0 AC OR 264.0 AC |
| Drive Type | DIRECT |
| Outlet Inside Diameter | 2.500 INCHES MAXIMUM IN |
| Style Designator | FIXED |
| Discharge Direction | HORIZONTAL |
| Height | 5.880 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 9750.0 |
| Width | 5.370 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Electrical Connection Type | CONNECTOR |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 120.0 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 |
|---|---|
| 1952-25 PRIMARY | Rotron Incorporated (USA) |
NSN 4140-01-568-3157 is a Fan,centrifugal, manufactured by Rotron Incorporated, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-568-3157 has 1 manufacturer part number on file: 1952-25 (Rotron Incorporated).
Key specifications for 1952-25: Outlet Location: TOP OR BOTTOM; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Speed Adjustments: 0 TO FULL SPEED; Phase: SINGLE. 20 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.