The Fan,centrifugal, cataloged under National Stock Number 4140-00-535-4627, 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 Curtiss-Wright Controls Integrated Sensing, Inc.. Government technical data includes 23 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-535-4627 |
| Primary Part Number | BT3830B-2 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Curtiss-Wright Controls Integrated Sensing, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 CLAMP |
| Phase | THREE |
| Inclosure Type | PARTIALLY INCLOSED |
| Outlet Inside Height | 2.125 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 208.0 AC OR 440.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.750 HORSEPOWER |
| Diameter | 6.200 INCHES NOMINAL IN |
| Features Provided | NONSPARKING |
| Ambient Temp at Full Rated Power | 85.0 CELSIUS AND 139.0 CELSIUS DEGC |
| Discharge Direction | ANGULAR DOWN AND ANGULAR UP AND HORIZONTAL AND VERTICAL DOWN AND VERTICAL UP |
| Outlet Inside Width | 4.969 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 3350.0 |
| Surface Treatment | CADMIUM BLADE |
| Surface Treatment | PRIMER AND ENAMEL HOUSING INSIDE |
| Surface Treatment | PRIMER AND ENAMEL HOUSING OUTSIDE |
| Environmental Protection | SPLASH PROOF |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 425.000 CUBIC FEET PER MINUTE MAXIMUM |
| 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 |
|---|---|
| BT3830B-2 | Curtiss-Wright Controls Integrated Sensing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ARPRX-AS621CCW-248L2 | 5/9 Secondary reference U.S. Government activity |
| A2060429ISSUEB | 5/9 Secondary reference L3harris Technologies, Inc. |
| A0-9295 | 5/9 Secondary reference U.S. Government activity |
| 666062-413 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| 666062-412 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| SC2060860ISSUEA | 5/9 Secondary reference L3harris Technologies, Inc. |
| 020675 | 3/2 Design control — primary reference U.S. Government activity |
| A2060429 | 5/9 Secondary reference L3harris Technologies, Inc. |
NSN 4140-00-535-4627 is a Fan,centrifugal, manufactured by Curtiss-Wright Controls Integrated Sensing, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-535-4627 has 1 manufacturer part number on file: BT3830B-2 (Curtiss-Wright Controls Integrated Sensing, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-497-4765. Verify interchangeability with system specifications before substitution.
Key specifications for BT3830B-2: Mounting Facility Type and Quantity: 1 CLAMP; Phase: THREE; Inclosure Type: PARTIALLY INCLOSED; Outlet Inside Height: 2.125 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.