The Impeller,fan,axial, cataloged under National Stock Number 4140-01-546-4697, 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 Fm Af, Llc Dba American Fan Company. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-546-4697 |
| Primary Part Number | FF-19512 PC NO. 2 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 |
| Attachment Method | BOLT HOLE |
| Diameter | 33.945 INCHES NOMINAL IN |
| Blade Quantity | 19 |
| Hub Location | CENTER |
| Material | ALUMINUM BLADE |
| 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 |
|---|---|
| FF-19512 PC NO. 2 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| FF-19512 | D/9 Drawing number reference only Fm Af, Llc Dba American Fan Company |
NSN 4140-01-546-4697 is a Impeller,fan,axial, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-546-4697 has 1 manufacturer part number on file: FF-19512 PC NO. 2 (Fm Af, Llc Dba American Fan Company).
Key specifications for FF-19512 PC NO. 2: Mounting Hole Quantity: 8; Attachment Method: BOLT HOLE; Diameter: 33.945 INCHES NOMINAL IN; Blade Quantity: 19. 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.