The Impeller,fan,axial, cataloged under National Stock Number 4140-01-198-9397, 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 Valad Electric Heating Corp.. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-198-9397 |
| Primary Part Number | 4C051 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Valad Electric Heating Corp. |
| Status | ACTIVE |
| Style Designator | ROUNDED TIP |
| Diameter | 8.000 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Hub Location | CENTER |
| Material | ALUMINUM OVERALL |
| 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 |
|---|---|
| 4C051 PRIMARY | Valad Electric Heating Corp. (USA) |
| Reference | Meaning |
|---|---|
| 4C051 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 4C051/HUB/1-2 | C/1 Advisory reference — outside the item-of-supply concept Valad Electric Heating Corp. |
NSN 4140-01-198-9397 is a Impeller,fan,axial, manufactured by Valad Electric Heating Corp., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-198-9397 has 1 manufacturer part number on file: 4C051 (Valad Electric Heating Corp.).
Key specifications for 4C051: Style Designator: ROUNDED TIP; Diameter: 8.000 INCHES NOMINAL IN; Blade Quantity: 5; Hub Location: CENTER. 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.