The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-159-2639, 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 Kato Engineering 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-159-2639 |
| Primary Part Number | 017-00077-01 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Kato Engineering Inc. |
| Status | ACTIVE |
| Mounting Hole Quantity | 12 |
| Style Designator | STRAIGHT BLADES SINGLE WIDTH |
| Attachment Method | BOLT HOLE |
| Mounting Hole Diameter | 0.500 INCHES NOMINAL IN |
| Diameter | 31.000 INCHES NOMINAL IN |
| Blade Quantity | 24 |
| Mounting Bolt Circle Diameter | 16.000 INCHES NOMINAL IN |
| Width | 3.250 INCHES NOMINAL IN |
| Material | STEEL COMP 1018 OVERALL |
| 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 |
|---|---|
| 017-00077-01 PRIMARY | Kato Engineering Inc. (USA) |
NSN 4140-01-159-2639 is a Impeller,fan,centrifugal, manufactured by Kato Engineering Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-159-2639 has 1 manufacturer part number on file: 017-00077-01 (Kato Engineering Inc.).
Key specifications for 017-00077-01: Mounting Hole Quantity: 12; Style Designator: STRAIGHT BLADES SINGLE WIDTH; Attachment Method: BOLT HOLE; Mounting Hole Diameter: 0.500 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.