The Fan,tubeaxial, cataloged under National Stock Number 1680-01-659-3694, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-659-3694 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Speed Adjustments | 0 TO FULL SPEED |
| Phase | THREE |
| Frequency in Hertz | 40.0 |
| Inclosure Type | PARTIALLY INCLOSED |
| Length | 1.71 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 200.0 AC |
| Flow Direction | OUTWARD |
| Surface Treatment Document and Classification | TT-E-489 TYPE B FED STD SINGLE TREATMENT RESPONSE OVERALL |
| Housing Inside Diameter | 6.75 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 43.0 WATTS |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | 85.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 3400.0 |
| Surface Treatment | ENAMEL OVERALL |
| Material | ALUMINUM OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Air Flow Rate | 248.0 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 |
|---|---|
| 33089000 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-659-3694 is a Fan,tubeaxial, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-659-3694: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Speed Adjustments: 0 TO FULL SPEED; Phase: THREE; Frequency in Hertz: 40.0. 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.