The Fan,centrifugal, cataloged under National Stock Number 4140-00-255-9258, 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 23 specifications, cited from the U.S. Government catalog. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-255-9258 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 1 FLANGE |
| Speed Adjustments | SINGLE SPEED |
| Inclosure Type | FULLY INCLOSED |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 21.100 HORSEPOWER |
| Quantity | 1 |
| Ambient Temp at Full Rated Power | 488.0 FAHRENHEIT DEGF |
| Discharge Direction | HORIZONTAL |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 3460.0 |
| Surface Treatment | ZINC HOUSING INSIDE |
| Surface Treatment | ZINC BLADE |
| Surface Treatment | ZINC HOUSING OUTSIDE |
| Environmental Protection | WATERPROOF |
| Material | STEEL BLADE |
| Material | STEEL HOUSING |
| Prime Mover Type | STEAM TURBINE |
| Rotation Direction for Which Designed | CLOCKWISE |
| Electrical Connection Type | TERMINAL BLOCK |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY AJLG |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 8400.000 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 |
|---|---|
| AD14S53-03AV4S53-03ARS53-01 | 5/1 Secondary reference U.S. Government activity |
| AD14-S53-03 | 5/2 Secondary reference U.S. Government activity |
| AV4-S53-03 | 5/2 Secondary reference U.S. Government activity |
| D15-395AV1B | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-395A | 3/1 Design control — primary reference U.S. Government activity |
| D15-395A | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-395-B | 5/9 Secondary reference U.S. Government activity |
| D15-395AV1B | 5/2 Secondary reference U.S. Government activity |
| D15-395-B | 5/2 Secondary reference U.S. Government activity |
| AR5-S53-01 | 5/2 Secondary reference U.S. Government activity |
| D15-395ACW | 5/2 Secondary reference U.S. Government activity |
| D15-395ACW | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-255-9258 is a Fan,centrifugal, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-00-255-9258: Outlet Location: TOP; Mounting Facility Type and Quantity: 1 FLANGE; Speed Adjustments: SINGLE SPEED; Inclosure Type: FULLY INCLOSED. 23 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.