The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-025-4910, 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 Kooltronic, Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Kooltronic, Inc. (CAGE 06223) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-025-4910 |
| Primary Part Number | B384-200SCW |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Kooltronic, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| B384-200SCW | Kooltronic, Inc. (USA) |
| 2-100446-09 | Kooltronic, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2-100446 | D/9 Drawing number reference only Kooltronic, Inc. |
| B384-200-SCW | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-025-4910 is a Impeller,fan,centrifugal, manufactured by Kooltronic, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-025-4910 has 2 manufacturer part numbers on file: B384-200SCW (Kooltronic, Inc.), 2-100446-09 (Kooltronic, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-025-4911. Verify interchangeability with system specifications before substitution.
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.