The Fan,tubeaxial, cataloged under National Stock Number 4140-01-189-4977, 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 24 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-189-4977 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 RIM AND 4 THREADED INSERT |
| 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 | INWARD |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE HOUSING |
| Housing Inside Diameter | 6.375 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | 70.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 3250.0 |
| Surface Treatment | ENAMEL BLADE |
| Environmental Protection | HUMIDITY PROOF AND SALT SPRAY RESISTANT AND SHOCK PROOF AND VIBRATION PROOF |
| Material | ALUMINUM ALLOY HOUSING |
| Material | PLASTIC POLYCARBONATE BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 220.000 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 |
|---|---|
| 7907527-D1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 7907527-01 | 1/2 Source control — Government-approved source U.S. Government activity |
| 033648 SERIES 1790YF | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 033648 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-189-4977 is a Fan,tubeaxial, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-189-4977: Mounting Facility Type and Quantity: 2 RIM AND 4 THREADED INSERT; Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 50.0 AND 60.0. 24 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.