The Fan,vaneaxial, cataloged under National Stock Number 4140-01-466-4450, 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 Howden American Fan Company Dba American Fan Co Div Howden Usa Company. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-466-4450 |
| Primary Part Number | B3568-1 |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Howden American Fan Company Dba American Fan Co Div Howden Usa Company |
| Status | ACTIVE |
| Length | 15.375 INCHES NOMINAL IN |
| Flow Direction | INWARD |
| Housing Inside Diameter | 13.250 INCHES NOMINAL IN |
| Style Designator | FIXED |
| Prime Mover Type | ELECTRIC MOTOR |
| 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 |
|---|---|
| B3568-1 PRIMARY | Howden American Fan Company Dba American Fan Co Div Howden Usa Company (USA) |
| B9W-58010 CD-3568-1 | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| 9W-58010 CD-3568-1 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
| 9W-58010 CD-3568-1 | 3/9 Design control — primary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| B3568-1 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
NSN 4140-01-466-4450 is a Fan,vaneaxial, manufactured by Howden American Fan Company Dba American Fan Co Div Howden Usa Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-466-4450 has 2 manufacturer part numbers on file: B3568-1 (Howden American Fan Company Dba American Fan Co Div Howden Usa Company), B9W-58010 CD-3568-1 (Fm Af, Llc Dba American Fan Company).
Key specifications for B3568-1: Length: 15.375 INCHES NOMINAL IN; Flow Direction: INWARD; Housing Inside Diameter: 13.250 INCHES NOMINAL IN; Style Designator: FIXED. 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.