The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-506-6780, 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 Ngh Retail Llc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-506-6780 |
| Primary Part Number | 28563 |
| Item Name | Impeller,fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ngh Retail Llc |
| Status | ACTIVE |
| Style Designator | STRAIGHT BLADES SINGLE WIDTH |
| Attachment Method | KEYWAY |
| Diameter | 5.750 INCHES NOMINAL IN |
| Blade Quantity | 32 |
| Width | 4.130 INCHES NOMINAL IN |
| Material | STEEL AND 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 |
NSN 4140-01-506-6780 is a Impeller,fan,centrifugal, manufactured by Ngh Retail Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-506-6780 has 2 manufacturer part numbers on file: 28563 (Ngh Retail Llc), 28563 (Heat Wagons Inc).
Key specifications for 28563: Style Designator: STRAIGHT BLADES SINGLE WIDTH; Attachment Method: KEYWAY; Diameter: 5.750 INCHES NOMINAL IN; Blade Quantity: 32. 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.