The Fan,centrifugal, cataloged under National Stock Number 4140-00-805-5535, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Ashland Electric Products Inc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-805-5535 |
| Primary Part Number | C25Q42Q-1C |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Ashland Electric Products Inc |
| Status | ACTIVE |
| Outlet Location | TOP |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 2.312 INCHES NOMINAL IN |
| Length | 4.469 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.063 HORSEPOWER |
| Style Designator | FIXED, INVERTED, RECTANGULAR OUTLET |
| Discharge Direction | VERTICAL UP |
| Outlet Inside Width | 0.938 INCHES NOMINAL IN |
| Height | 6.062 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 3150.0 |
| Surface Treatment | ENAMEL OVERALL |
| Width | 6.406 INCHES NOMINAL IN |
| Material | STEEL 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 | 72.0 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 |
| Part Number | Manufacturer |
|---|---|
| C25Q42Q-1C | Ashland Electric Products Inc (USA) |
| Reference | Meaning |
|---|---|
| A0-18397 | 5/9 Secondary reference U.S. Government activity |
| 022055 | 3/2 Design control — primary reference U.S. Government activity |
| DRPPI/KS409CW-91AF | 5/2 Secondary reference U.S. Government activity |
NSN 4140-00-805-5535 is a Fan,centrifugal, manufactured by Ashland Electric Products Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-805-5535 has 1 manufacturer part number on file: C25Q42Q-1C (Ashland Electric Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-505-2645. Verify interchangeability with system specifications before substitution.
Key specifications for C25Q42Q-1C: Outlet Location: TOP; Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Inclosure Type: FULLY INCLOSED. 24 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.