The Fan,centrifugal, cataloged under National Stock Number 4140-00-304-2803, 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 22 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4140-00-304-2803 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | PARTIALLY INCLOSED |
| Outlet Inside Height | 2.750 INCHES NOMINAL IN |
| Length | 6.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 230.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.100 HORSEPOWER |
| Quantity | 2 |
| Style Designator | FIXED, DUAL IMPELLER, RECTANGULAR OUTLET |
| Diameter | 3.906 INCHES NOMINAL IN |
| Outlet Inside Width | 2.500 INCHES NOMINAL IN |
| Height | 7.000 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 3000.0 |
| Surface Treatment | ENAMEL HOUSING OUTSIDE |
| Width | 12.000 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 |
| Air Flow Rate | 375.0 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 | N |
| Reference | Meaning |
|---|---|
| 3005914-00 | 5/9 Secondary reference Unisys Corp Computer Systems Div Washington Parts & Supply Center |
| 3005914-00 | 5/2 Secondary reference U.S. Government activity |
| 2NB412S14 | 3/9 Design control — primary reference Zero Corp Mclean Engineering Div |
NSN 4140-00-304-2803 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-00-304-2803: Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Inclosure Type: PARTIALLY INCLOSED; Outlet Inside Height: 2.750 INCHES NOMINAL IN. 22 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.