The Fan,tubeaxial, cataloged under National Stock Number 4140-01-375-5820, 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 Pegasus Savunma Sanayi Ve Ticaret Anonim Sirketi. Government technical data includes 18 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-375-5820 |
| Primary Part Number | MR2B3QDN |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Pegasus Savunma Sanayi Ve Ticaret Anonim Sirketi |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 2.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Flow Direction | OUTWARD |
| Housing Inside Diameter | 6.500 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 31.0 WATTS |
| Style Designator | FIXED |
| Operating Speed at Rated Capacity in RPM | 2800.0 AND 3400.0 |
| Material | PLASTIC BLADE |
| Material | ALUMINUM ALLOY HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Air Flow Rate | 235.0 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 |
|---|---|
| MR2B3QDN | Pegasus Savunma Sanayi Ve Ticaret Anonim Sirketi (TUR) |
| MR2B3QDN | Kl Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| MR2B3QDN | 5/9 Secondary reference Comair Rotron Inc Sub of Kl Industries Inc |
| 90035-1 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Rmd Strategic |
| 039341 | 3/9 Design control — primary reference Minnpar, Llc Dba Minnpar |
| 039341 | 5/9 Secondary reference Comair Rotron Inc Sub of Kl Industries Inc |
| MR2B3QDN | 5/9 Secondary reference U.S. Government activity |
| B22-0021-115 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 028950 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4140-01-375-5820 is a Fan,tubeaxial, manufactured by Pegasus Savunma Sanayi Ve Ticaret Anonim Sirketi, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-375-5820 has 2 manufacturer part numbers on file: MR2B3QDN (Pegasus Savunma Sanayi Ve Ticaret Anonim Sirketi), MR2B3QDN (Kl Industries Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4140-01-426-4120, 4140-01-451-4655, 4940-01-603-6679. Verify interchangeability with system specifications before substitution.
Key specifications for MR2B3QDN: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 50.0 AND 60.0. 18 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.