The Fan,tubeaxial, cataloged under National Stock Number 4140-01-657-4520, 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 Delta Electronics Inc.. Government technical data includes 12 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 | 4140-01-657-4520 |
| Primary Part Number | EFB0412HHD-DV62 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Delta Electronics Inc. |
| Status | ACTIVE |
| Length | 40.0 MILLIMETERS NOMINAL MM |
| Voltage in Volts and Current Type | 12.0 DC |
| Prime Mover Power Rating | 1.44 WATTS |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | 158.0 FAHRENHEIT DEGF |
| Height | 40.0 MILLIMETERS NOMINAL MM |
| Operating Speed at Rated Capacity in RPM | 8200.0 |
| Width | 20.0 MILLIMETERS NOMINAL MM |
| Material | PLASTIC BLADE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Air Flow Rate | 9.12 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| EFB0412HHD-DV62 PRIMARY | Delta Electronics Inc. |
| 222700817 | Viavi Solutions Inc. Dba Viavi (USA) |
NSN 4140-01-657-4520 is a Fan,tubeaxial, manufactured by Delta Electronics Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-657-4520 has 2 manufacturer part numbers on file: EFB0412HHD-DV62 (Delta Electronics Inc.), 222700817 (Viavi Solutions Inc. Dba Viavi).
Key specifications for EFB0412HHD-DV62: Length: 40.0 MILLIMETERS NOMINAL MM; Voltage in Volts and Current Type: 12.0 DC; Prime Mover Power Rating: 1.44 WATTS; Style Designator: FIXED. 12 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.