The Fan,centrifugal, cataloged under National Stock Number 4140-01-055-2249, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-055-2249 |
| Primary Part Number | BC2929B-15 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Curtiss-Wright Controls Integrated Sensing, Inc. |
| Status | ACTIVE |
| Outlet Inside Height | 1.420 INCHES NOMINAL IN |
| Length | 7.220 INCHES NOMINAL IN |
| Quantity | 16 |
| Style Designator | FIXED, INVERTED, RECTANGULAR OUTLET |
| Outlet Inside Width | 4.190 INCHES NOMINAL IN |
| Height | 7.780 INCHES NOMINAL IN |
| Width | 9.160 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| BC2929B-15 | Curtiss-Wright Controls Integrated Sensing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SM-A-776998 | 7/2 Vendor item drawing reference U.S. Government activity |
| 033137 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-055-2249 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 4140-01-055-2249 has 1 manufacturer part number on file: BC2929B-15 (Curtiss-Wright Controls Integrated Sensing, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-057-1365. Verify interchangeability with system specifications before substitution.
Key specifications for BC2929B-15: Outlet Inside Height: 1.420 INCHES NOMINAL IN; Length: 7.220 INCHES NOMINAL IN; Quantity: 16; Style Designator: FIXED, INVERTED, RECTANGULAR OUTLET. 8 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.