The Fan,centrifugal, cataloged under National Stock Number 4140-00-640-6809, 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 25 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-640-6809 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 4 FEET AND 16 UNTHREADED HOLE(S) FT |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | PARTIALLY INCLOSED |
| Outlet Inside Height | 1.750 INCHES NOMINAL IN |
| Length | 6.375 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | GEAR |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Ambient Temp at Full Rated Power | -65.0 FAHRENHEIT AND 205.0 FAHRENHEIT DEGF |
| Discharge Direction | VERTICAL UP |
| Height | 5.607 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 3208.0 |
| Surface Treatment | ANODIZE OVERALL |
| Environmental Protection | SHOCK PROOF AND VIBRATION PROOF |
| Width | 10.125 INCHES NOMINAL IN |
| Material | ALUMINUM OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 50.0 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 |
|---|---|
| SC-C-65339 | 3/2 Design control — primary reference U.S. Government activity |
| GA51973L1 | 5/9 Secondary reference American Telephone and Telegraph Co |
| SCC65339 | 5/9 Secondary reference Ametek Inc Lamb Electric Div |
| IS14479 | 5/1 Secondary reference Ametek Inc Lamb Electric Div |
| GA51973L1 | 5/9 Secondary reference At and T Corp |
| S0-C-65339 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-640-6809 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-00-640-6809: Outlet Location: TOP; Mounting Facility Type and Quantity: 4 FEET AND 16 UNTHREADED HOLE(S) FT; Speed Adjustments: SINGLE SPEED; Phase: SINGLE. 25 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.