The Fan,circulating, cataloged under National Stock Number 4140-01-685-0881, 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 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-685-0881 |
| Primary Part Number | PFB1224UHE-R00 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Delta Electronics Inc. |
| Status | ACTIVE |
| Length | 120.0 MILLIMETERS NOMINAL MM |
| Voltage in Volts and Current Type | 24.0 DC |
| Height | 120.0 MILLIMETERS NOMINAL MM |
| Width | 38.0 MILLIMETERS NOMINAL MM |
| Material | PLASTIC OVERALL |
| 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 |
|---|---|
| PFB1224UHE-R00 PRIMARY | Delta Electronics Inc. |
| PFB1224UHE PRIMARY | Delta Electronics Inc Dba Delta Electronics Inc (USA) |
| 21-1058 | Euroatlas Gmbh (DEU) |
NSN 4140-01-685-0881 is a Fan,circulating, manufactured by Delta Electronics Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-685-0881 has 3 manufacturer part numbers on file: PFB1224UHE-R00 (Delta Electronics Inc.), PFB1224UHE (Delta Electronics Inc Dba Delta Electronics Inc), 21-1058 (Euroatlas Gmbh).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-690-2066. Verify interchangeability with system specifications before substitution.
Key specifications for PFB1224UHE-R00: Length: 120.0 MILLIMETERS NOMINAL MM; Voltage in Volts and Current Type: 24.0 DC; Height: 120.0 MILLIMETERS NOMINAL MM; Width: 38.0 MILLIMETERS NOMINAL MM. 5 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.