The Fan,tubeaxial, cataloged under National Stock Number 4140-01-186-9977, 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 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4140-01-186-9977 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 FLANGE AND 8 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Inclosure Type | FULLY INCLOSED |
| Length | 1.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 24.0 DC OR 28.0 DC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 4.500 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.013 HORSEPOWER |
| Style Designator | FIXED |
| Diameter | 4.300 INCHES NOMINAL IN |
| Ambient Temp at Full Rated Power | 100.0 CELSIUS DEGC |
| Height | 4.690 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 3200.0 |
| Width | 4.690 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY HOUSING |
| Material | PLASTIC POLYCARBONATE BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | CONNECTOR |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 119.000 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 |
|---|---|
| 401-39759-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-186-9977 is a Fan,tubeaxial, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-186-9977: Mounting Facility Type and Quantity: 2 FLANGE AND 8 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Inclosure Type: FULLY INCLOSED; Length: 1.500 INCHES NOMINAL IN. 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.