The Impeller,fan,axial, cataloged under National Stock Number 4140-01-708-8694, 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 Multi-Wing America Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-708-8694 |
| Primary Part Number | 18/9-9/40/PAG/PMAX3 L/P 1.490 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Multi-Wing America Inc. |
| Status | ACTIVE |
| Style Designator | STRAIGHT TIP |
| Diameter | 18.0 INCHES NOMINAL IN |
| Blade Shape | BACKWARD INCLINE |
| Blade Quantity | 9 |
| Hub Location | CENTER |
| Material | ALUMINUM HOUSING |
| Material | PLASTIC POLYAMIDE NYLON BLADE |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
|---|---|
| 18/9-9/40/PAG/PMAX3 L/P 1.490 PRIMARY | Multi-Wing America Inc. (USA) |
| 5-13-10934-1 | Berg Manufacturing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5-13-10934-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 5-13-10934 | D/9 Drawing number reference only U.S. Government activity |
NSN 4140-01-708-8694 is a Impeller,fan,axial, manufactured by Multi-Wing America Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-708-8694 has 2 manufacturer part numbers on file: 18/9-9/40/PAG/PMAX3 L/P 1.490 (Multi-Wing America Inc.), 5-13-10934-1 (Berg Manufacturing, Inc.).
Key specifications for 18/9-9/40/PAG/PMAX3 L/P 1.490: Style Designator: STRAIGHT TIP; Diameter: 18.0 INCHES NOMINAL IN; Blade Shape: BACKWARD INCLINE; Blade Quantity: 9. 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.