The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-00-269-7941, 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 Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-269-7941 |
| Primary Part Number | 426659PC2 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Attachment Method | KEYWAY |
| Diameter | 3.000 INCHES NOMINAL IN |
| Blade Quantity | 24 |
| Width | 1.875 INCHES NOMINAL IN |
| Material | STEEL BLADE |
| 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 |
|---|---|
| K9031871-1 | General Electric Company (USA) |
| T8673780PC2 | General Electric Company (USA) |
| 426659PC2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| MSA-4278-1 W/MS-1642-4A HUB | 5/9 Secondary reference Regal-Beloit Corporation Dba Fasco Group Div Cassville Division |
| 426659PC2 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4140-00-269-7941 is a Impeller,fan,centrifugal, manufactured by Naval Sea Systems Command, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-269-7941 has 3 manufacturer part numbers on file: K9031871-1 (General Electric Company), T8673780PC2 (General Electric Company), 426659PC2 (Naval Sea Systems Command).
Key specifications for 426659PC2: Attachment Method: KEYWAY; Diameter: 3.000 INCHES NOMINAL IN; Blade Quantity: 24; Width: 1.875 INCHES NOMINAL IN. 5 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.