The Impeller,fan,axial, cataloged under National Stock Number 4140-01-429-3860, 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 Lennox Industries Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4140-01-429-3860 |
| Primary Part Number | 5111C |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Lennox Industries Inc |
| Status | ACTIVE |
| Blade Quantity | 5 |
| Hub Location | CENTER AND BACK |
| 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 |
|---|---|
| 5111C PRIMARY | Lennox Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 5111C | 5/9 Secondary reference Gulf and Western Mfg Co Bohn Heat Transfer Group |
| RWE4609 | 5/9 Secondary reference Cospolich Inc. |
NSN 4140-01-429-3860 is a Impeller,fan,axial, manufactured by Lennox Industries Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-429-3860 has 1 manufacturer part number on file: 5111C (Lennox Industries Inc).
Key specifications for 5111C: Blade Quantity: 5; Hub Location: CENTER AND BACK; Special Features: ALUMINUM BLADE, ZINC PLATED STEEL HUB; 10 IN. DIA W/0.312 IN. BORE IN; Rotation Direction for Which Designed: COUNTERCLOCKWISE. 3 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.