The Impeller,fan,axial, cataloged under National Stock Number 4140-01-546-4375, 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 Lincoln Electric Holdings Inc. Government technical data includes 9 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 | 4140-01-546-4375 |
| Primary Part Number | M8678-2 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Lincoln Electric Holdings Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Style Designator | ROUNDED TIP |
| Attachment Method | BOLT HOLE |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Diameter | 2.000 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN |
| Blade Quantity | 5 |
| Hub Location | CENTER |
| Material | ALUMINUM OR PLASTIC BLADE |
| 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 |
|---|---|
| P-404-E.1 ITEM 4B AND 5B | Lincoln Electric Holdings Inc (USA) |
| M8678-2 PRIMARY | Lincoln Electric Holdings Inc (USA) |
NSN 4140-01-546-4375 is a Impeller,fan,axial, manufactured by Lincoln Electric Holdings Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-546-4375 has 2 manufacturer part numbers on file: P-404-E.1 ITEM 4B AND 5B (Lincoln Electric Holdings Inc), M8678-2 (Lincoln Electric Holdings Inc).
Key specifications for M8678-2: Mounting Hole Quantity: 1; Style Designator: ROUNDED TIP; Attachment Method: BOLT HOLE; Mounting Hole Diameter: 0.250 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.