The Fan,centrifugal, cataloged under National Stock Number 4140-01-024-1331, 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 Curtiss-Wright Controls Integrated Sensing, Inc.. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-024-1331 |
| Primary Part Number | BC2918B-21 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Curtiss-Wright Controls Integrated Sensing, Inc. |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 2 FLANGE AND 8 THREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 1.422 INCHES NOMINAL IN |
| Length | 7.219 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Style Designator | FIXED, DUAL IMPELLER, RECTANGULAR OUTLET |
| Discharge Direction | VERTICAL UP |
| Outlet Inside Width | 4.188 INCHES NOMINAL IN |
| Height | 7.781 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 1650.0 |
| Surface Treatment | ENAMEL HOUSING |
| Width | 12.476 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 260.0 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 |
|---|---|
| C7Z22P-1A | Ashland Electric Products Inc (USA) |
| 791703 PC 107 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| BC2918B-21 PRIMARY | Curtiss-Wright Controls Integrated Sensing, Inc. (USA) |
| 917139-1 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 791703 PIECE 10 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 4140-01-024-1331 is a Fan,centrifugal, manufactured by Curtiss-Wright Controls Integrated Sensing, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-024-1331 has 4 manufacturer part numbers on file: C7Z22P-1A (Ashland Electric Products Inc), 791703 PC 107 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), BC2918B-21 (Curtiss-Wright Controls Integrated Sensing, Inc.), 917139-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for BC2918B-21: Outlet Location: TOP; Mounting Facility Type and Quantity: 2 FLANGE AND 8 THREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE. 23 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.