The Fan,centrifugal, cataloged under National Stock Number 4140-00-976-5569, 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 28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-976-5569 |
| 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 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 2.344 INCHES NOMINAL IN |
| Length | 6.522 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 55.0 WATTS |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Features Provided | NONSPARKING |
| Discharge Direction | HORIZONTAL |
| Outlet Inside Width | 2.000 INCHES NOMINAL IN |
| Height | 6.753 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 3300.0 |
| Surface Treatment | ZINC HOUSING INSIDE |
| Surface Treatment | CADMIUM BLADE |
| Surface Treatment | ENAMEL HOUSING OUTSIDE |
| Width | 5.307 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | TERMINAL |
| 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 |
|---|---|
| 420878 | 5/9 Secondary reference Raytheon Technical Services Company |
| B5AA-L2-2CC | 3/9 Design control — primary reference Eastern Air Devices Inc Dba Ead Motors |
NSN 4140-00-976-5569 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-00-976-5569: Outlet Location: TOP; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE. 28 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.