The Fan,tubeaxial, cataloged under National Stock Number 4140-01-510-9666, 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 Eg and G Rotron Regenerative Blower Opns. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-510-9666 |
| Primary Part Number | 031175 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Eg and G Rotron Regenerative Blower Opns |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 8 THREADED INSERT |
| Flow Direction | INWARD |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Material | PLASTIC OVERALL |
| Rotation Direction for Which Designed | CLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| 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 |
|---|---|
| 031175 PRIMARY | Eg and G Rotron Regenerative Blower Opns (USA) |
| OD1225-24HB | Knight Electronics, Inc Div Orion Fans (USA) |
| Reference | Meaning |
|---|---|
| 031175 | 3/9 Design control — primary reference Comair Rotron Inc Sub of Kl Industries Inc |
NSN 4140-01-510-9666 is a Fan,tubeaxial, manufactured by Eg and G Rotron Regenerative Blower Opns, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-510-9666 has 2 manufacturer part numbers on file: 031175 (Eg and G Rotron Regenerative Blower Opns), OD1225-24HB (Knight Electronics, Inc Div Orion Fans).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-595-0710. Verify interchangeability with system specifications before substitution.
Key specifications for 031175: Mounting Facility Type and Quantity: 8 THREADED INSERT; Flow Direction: INWARD; Drive Type: DIRECT; Style Designator: FIXED. 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.