The Impeller,fan,axial, cataloged under National Stock Number 4140-01-117-9520, 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 Honeywell International Inc. Div Aerospace - Torrance. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-117-9520 |
| Primary Part Number | 606157-1 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Style Designator | ROUNDED TIP |
| Attachment Method | COMPRESSION |
| Diameter | 4.876 INCHES MINIMUM AND 4.877 INCHES MAXIMUM IN |
| Blade Quantity | 11 |
| Hub Location | BACK |
| Material | ALUMINUM ALLOY 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 |
NSN 4140-01-117-9520 is a Impeller,fan,axial, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-117-9520 has 2 manufacturer part numbers on file: 606157 (Honeywell International Inc. Div Aerospace - Torrance), 606157-1 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-619-7703. Verify interchangeability with system specifications before substitution.
Key specifications for 606157-1: Style Designator: ROUNDED TIP; Attachment Method: COMPRESSION; Diameter: 4.876 INCHES MINIMUM AND 4.877 INCHES MAXIMUM IN; Blade Quantity: 11. 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.