The Fan,centrifugal, cataloged under National Stock Number 4140-01-299-1631, 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 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-299-1631 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Outlet Location | TOP |
| Speed Adjustments | SINGLE SPEED |
| Outlet Inside Height | 16.750 INCHES NOMINAL IN |
| Drive Type | BELT |
| Prime Mover Power Rating | 3.000 HORSEPOWER |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Ambient Temp at Full Rated Power | 250.0 FAHRENHEIT DEGF |
| Discharge Direction | HORIZONTAL |
| Height | 31.250 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 2365.0 |
| Environmental Protection | DRIPPROOF AND WEATHERPROOF |
| Width | 35.375 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE OR COUNTERCLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 4888.0 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 |
|---|---|
| 061-15-BCK3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-299-1631 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-299-1631: Outlet Location: TOP; Speed Adjustments: SINGLE SPEED; Outlet Inside Height: 16.750 INCHES NOMINAL IN; Drive Type: BELT. 17 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.