The Fan,ventilating, cataloged under National Stock Number 4140-00-274-5798, 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 Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-274-5798 |
| Primary Part Number | 238A |
| Item Name | Fan,ventilating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 FLANGE AND 8 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 400.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 1.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 4.125 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.020 HORSEPOWER |
| Quantity | 1 |
| Style Designator | FIXED |
| Diameter | 3.175 INCHES NOMINAL IN |
| Ambient Temp at Full Rated Power | 85.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 11200.0 |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | CORD W/ATTACHED PLUG |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 140.000 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 |
| Part Number | Manufacturer |
|---|---|
| 238A PRIMARY | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA) |
| Reference | Meaning |
|---|---|
| NBC-H07F-7 | C/1 Advisory reference — outside the item-of-supply concept Aeroflex Laboratories Inc Rotating Components Div |
| C2241-1 | 3/2 Design control — primary reference U.S. Government activity |
| NBC-K10F-2 | 5/9 Secondary reference Aeroflex Laboratories Inc Rotating Components Div |
NSN 4140-00-274-5798 is a Fan,ventilating, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-274-5798 has 1 manufacturer part number on file: 238A (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).
1 possible match (shared part number, not a government interchangeability claim): 3950-01-087-7032. Verify interchangeability with system specifications before substitution.
Key specifications for 238A: Mounting Facility Type and Quantity: 1 FLANGE AND 8 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 400.0. 24 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.