The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-211-8403, 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 Ross Equipment Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-211-8403 |
| Primary Part Number | 6252562 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ross Equipment Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Style Designator | STRAIGHT RADIAL W/O BACK PLATE |
| Attachment Method | BOLT HOLE |
| Mounting Hole Diameter | 0.705 INCHES NOMINAL IN |
| Diameter | 19.500 INCHES NOMINAL IN |
| Blade Quantity | 10 |
| Mounting Bolt Circle Diameter | 3.500 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| 6252562 | Ross Equipment Inc (USA) |
| Reference | Meaning |
|---|---|
| 4735-38449-02 | 3/9 Design control — primary reference Borgwarner Thermal Systems Inc. Div Thermal Systems |
| 4035-38449-02 | 5/9 Secondary reference Borgwarner Thermal Systems Inc. Div Emissions/thermal Systems |
| 4035-38449-2 | 5/9 Secondary reference Borgwarner Thermal Systems Inc. Div Emissions/thermal Systems |
| 4140012118403 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 4735-38449-02 | 5/9 Secondary reference Kysor of Cadillac Rothbury Plant Div of Kysor Industrial Corp |
| 4735-38449-02 | 5/9 Secondary reference Borgwarner Thermal Systems Inc. Div Emissions/thermal Systems |
NSN 4140-01-211-8403 is a Impeller,fan,centrifugal, manufactured by Ross Equipment Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-211-8403 has 1 manufacturer part number on file: 6252562 (Ross Equipment Inc).
Key specifications for 6252562: Mounting Hole Quantity: 4; Style Designator: STRAIGHT RADIAL W/O BACK PLATE; Attachment Method: BOLT HOLE; Mounting Hole Diameter: 0.705 INCHES NOMINAL IN. 9 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.