The Fan,circulating, cataloged under National Stock Number 4140-00-173-0706, 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 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-173-0706 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 RING AND 3 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | PARTIALLY INCLOSED |
| Length | 3.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Flow Direction | OUTWARD |
| Housing Inside Diameter | 2.750 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.033 HORSEPOWER |
| Style Designator | FIXED |
| Operating Speed at Rated Capacity in RPM | 3000.0 |
| Material | ALUMINUM ALLOY OR STEEL OVERALL |
| 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 | 35.0 CUBIC FEET PER MINUTE MAXIMUM |
| 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 |
|---|---|
| NBCK07F11A | 5/9 Secondary reference Aeroflex Laboratories Inc Rotating Components Div |
| 59P236912 | 5/9 Secondary reference U.S. Government activity |
| 51-11430 | 3/9 Design control — primary reference Aeroflex Laboratories Inc Rotating Components Div |
NSN 4140-00-173-0706 is a Fan,circulating, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6110-01-026-8164. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-00-173-0706: Mounting Facility Type and Quantity: 1 RING AND 3 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 60.0. 20 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.