The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-031-9524, 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 Alliance Laundry Systems Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4140-01-031-9524 |
| Primary Part Number | TU403 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Alliance Laundry Systems Llc |
| Status | ACTIVE |
| Style Designator | CURVED RADIAL W/ BACK PLATE |
| Attachment Method | KEYWAY AND SETSCREW |
| Diameter | 16.625 INCHES NOMINAL IN |
| Blade Quantity | 10 |
| Width | 7.688 INCHES NOMINAL IN |
| Material | ALUMINUM OVERALL |
| 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 |
|---|---|
| TU403 | New Era Contract Sales Inc (USA) |
| TU403 PRIMARY | Alliance Laundry Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| TU403 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| TU-403 | 3/9 Design control — primary reference Cissell Manufacturing Company Dba Cissell Mfg |
NSN 4140-01-031-9524 is a Impeller,fan,centrifugal, manufactured by Alliance Laundry Systems Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-031-9524 has 2 manufacturer part numbers on file: TU403 (New Era Contract Sales Inc), TU403 (Alliance Laundry Systems Llc).
Key specifications for TU403: Style Designator: CURVED RADIAL W/ BACK PLATE; Attachment Method: KEYWAY AND SETSCREW; Diameter: 16.625 INCHES NOMINAL IN; Blade Quantity: 10. 7 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.