The Fan,centrifugal, cataloged under National Stock Number 4140-00-103-9728, 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 Motor Magnetics, Inc. Dba Motor Magnetics Corp. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-103-9728 |
| Primary Part Number | 23MB-0449 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Motor Magnetics, Inc. Dba Motor Magnetics Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 1.400 INCHES NOMINAL IN |
| Length | 5.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Quantity | 1 |
| Style Designator | FIXED, INVERTED, RECTANGULAR OUTLET |
| Diameter | 4.440 INCHES NOMINAL IN |
| Outlet Inside Width | 0.840 INCHES NOMINAL IN |
| Height | 5.360 INCHES NOMINAL IN |
| Surface Treatment | ZINC HOUSING INSIDE |
| Surface Treatment | CADMIUM BLADE |
| Width | 4.280 INCHES NOMINAL IN |
| Material | STEEL BLADE |
| Material | STEEL HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | TERMINAL BLOCK |
| Air Flow Rate | 40.0 CUBIC FEET PER MINUTE NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 23MB-0449 | Motor Magnetics, Inc. Dba Motor Magnetics Corp (USA) |
| C25K7K-1CC | Ashland Electric Products Inc (USA) |
| Reference | Meaning |
|---|---|
| A0-98479 | 3/2 Design control — primary reference U.S. Government activity |
| 630075-2 | 1/2 Source control — Government-approved source U.S. Government activity |
| 025253 | 5/1 Secondary reference U.S. Government activity |
| C5K7K-1CC | 5/9 Secondary reference Ashland Electric Products Inc |
NSN 4140-00-103-9728 is a Fan,centrifugal, manufactured by Motor Magnetics, Inc. Dba Motor Magnetics Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-103-9728 has 2 manufacturer part numbers on file: 23MB-0449 (Motor Magnetics, Inc. Dba Motor Magnetics Corp), C25K7K-1CC (Ashland Electric Products Inc).
Key specifications for 23MB-0449: Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: SINGLE; 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.
NSN 4140-00-103-9728 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.