The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-154-9615, 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 Oshkosh Defense Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-154-9615 |
| Primary Part Number | 2AL714 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Style Designator | STRAIGHT BLADES DOUBLE WIDTH |
| Attachment Method | SETSCREW |
| Diameter | 4.500 INCHES NOMINAL IN |
| Width | 4.000 INCHES NOMINAL IN |
| Material | ALUMINUM 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 |
|---|---|
| 2AL714 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 260170 | 5/9 Secondary reference Austin-Westran Llc |
| 2AL711 | 5/9 Secondary reference Oshkosh Corp |
| 2AL714 | 5/9 Secondary reference Oshkosh Corp |
| FED-416-200-1CW | 5/9 Secondary reference Regal-Beloit Corporation Dba Fasco Group Div Cassville Division |
| 58590 | 5/2 Secondary reference U.S. Government activity |
NSN 4140-01-154-9615 is a Impeller,fan,centrifugal, manufactured by Oshkosh Defense Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-154-9615 has 1 manufacturer part number on file: 2AL714 (Oshkosh Defense Llc).
5 possible matches (shared part number, not a government interchangeability claim): 4140-01-157-3501, 1280-01-303-8419, 7025-01-617-4116. Verify interchangeability with system specifications before substitution.
Key specifications for 2AL714: Style Designator: STRAIGHT BLADES DOUBLE WIDTH; Attachment Method: SETSCREW; Diameter: 4.500 INCHES NOMINAL IN; Special Features: DESIGNED FOR CW ROTATION DIRECTION. 6 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.