The Fan,circulating, cataloged under National Stock Number 4140-01-475-5219, 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 Atrenne Computing Solutions, Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-475-5219 |
| Primary Part Number | 3752724-01 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Atrenne Computing Solutions, Llc |
| Status | ACTIVE |
| Shaft Bearing Type | BALL |
| Voltage in Volts and Current Type | 12.0 DC |
| Prime Mover Power Rating | 6.0 WATTS |
| Operating Speed at Rated Capacity in RPM | 3330.0 |
| Material | PLASTIC POLYPROPYLENE BLADE |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Air Flow Rate | 110.0 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 |
|---|---|
| 3752724-01 | Atrenne Computing Solutions, Llc (USA) |
| Reference | Meaning |
|---|---|
| 030873 | 3/9 Design control — primary reference Comair Rotron Inc Sub of Kl Industries Inc |
| FF-S-92 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-475-5219 is a Fan,circulating, manufactured by Atrenne Computing Solutions, Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-475-5219 has 1 manufacturer part number on file: 3752724-01 (Atrenne Computing Solutions, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6545-01-507-5206. Verify interchangeability with system specifications before substitution.
Key specifications for 3752724-01: Shaft Bearing Type: BALL; Voltage in Volts and Current Type: 12.0 DC; Prime Mover Power Rating: 6.0 WATTS; Operating Speed at Rated Capacity in RPM: 3330.0. 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.