The Fan,tubeaxial, cataloged under National Stock Number 4140-00-008-7637, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-008-7637 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 40.0 |
| Inclosure Type | GUARDED |
| Length | 1.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Flow Direction | OUTWARD |
| Surface Treatment Document and Classification | MIL-E-5557,TYPE 4 MIL SPEC SINGLE TREATMENT RESPONSE BLADE |
| Housing Inside Diameter | 4.500 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | 0.0 CELSIUS AND 75.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 3700.0 |
| Surface Treatment | ENAMEL BLADE |
| Environmental Protection | SALT SPRAY RESISTANT |
| Material | PLASTIC BLADE |
| Material | ALUMINUM HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | TERMINAL BLOCK |
| Air Flow Rate | 135.0 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 |
| Reference | Meaning |
|---|---|
| 2899119-01 | 5/9 Secondary reference U.S. Government activity |
| 76868-1 | 3/2 Design control — primary reference U.S. Government activity |
| 810DS-ST | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| ST810DF | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4140-00-008-7637 is a Fan,tubeaxial, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4140-00-018-6533, 5940-01-652-4693. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-00-008-7637: Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 40.0; Inclosure Type: GUARDED. 22 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.