The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-592-4133, 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 Snowbird Technologies Inc.. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-592-4133 |
| Primary Part Number | ES9500-6354 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Snowbird Technologies Inc. |
| Status | ACTIVE |
| Style Designator | CURVED BLADES DOUBLE WIDTH |
| Attachment Method | SETSCREW |
| Blade Quantity | 38 |
| Mounting Bolt Circle Diameter | 0.500 INCHES NOMINAL IN |
| Material | STEEL 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 |
|---|---|
| ES9500-6354 PRIMARY | Snowbird Technologies Inc. (USA) |
| 1559AS525-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 4140-01-592-4133 is a Impeller,fan,centrifugal, manufactured by Snowbird Technologies Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-592-4133 has 2 manufacturer part numbers on file: ES9500-6354 (Snowbird Technologies Inc.), 1559AS525-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for ES9500-6354: Style Designator: CURVED BLADES DOUBLE WIDTH; Attachment Method: SETSCREW; Blade Quantity: 38; Mounting Bolt Circle Diameter: 0.500 INCHES NOMINAL IN. 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.