The Fan,centrifugal, cataloged under National Stock Number 4140-01-121-9930, 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 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-121-9930 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Outlet Inside Height | 20.500 INCHES NOMINAL IN |
| Length | 39.000 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 10.000 HORSEPOWER |
| Quantity | 1 |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Outlet Inside Width | 10.620 INCHES NOMINAL IN |
| Height | 24.500 INCHES NOMINAL IN |
| Width | 29.750 INCHES NOMINAL IN |
| Material | STEEL HOUSING |
| Material | ALUMINUM BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 3532.000 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 |
|---|---|
| MMP91739-1 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| MMP91739-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4140-01-121-9930 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-121-9930: Outlet Inside Height: 20.500 INCHES NOMINAL IN; Length: 39.000 INCHES NOMINAL IN; Drive Type: DIRECT; Prime Mover Power Rating: 10.000 HORSEPOWER. 14 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.