The Fan,centrifugal, cataloged under National Stock Number 4140-00-555-1745, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Rotron Incorporated. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-555-1745 |
| Primary Part Number | 021657 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — No Item Name Available |
| Manufacturer | Rotron Incorporated |
| Status | ACTIVE |
| Surface Treatment | ZINC BLADE |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Inclosure Type | FULLY INCLOSED |
| Stage Quantity | 1 |
| Mounting Facility Type and Quantity | 1 FLANGE AND 4 UNTHREADED HOLE(S) |
| Surface Treatment | ANODIZE HOUSING INSIDE |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Material | STEEL BLADE |
| Surface Treatment | ANODIZE HOUSING OUTSIDE |
| Outlet Location | TOP |
| Height | 7.781 INCHES NOMINAL IN |
| Length | 7.218 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Discharge Direction | VERTICAL UP |
| Phase | SINGLE |
| Ambient Temp at Full Rated Power | 60.0 CELSIUS DEGC |
| Material | ALUMINUM HOUSING |
| Operating Speed at Rated Capacity in RPM | 3200.0 |
| Speed Adjustments | SINGLE SPEED |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.273 HORSEPOWER |
| Width | 8.570 INCHES NOMINAL IN |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Outlet Inside Height | 3.688 INCHES NOMINAL IN |
| Outlet Inside Width | 3.594 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Environmental Protection | DRIPPROOF |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 228.0 CUBIC FEET PER MINUTE NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| DRFS-KS507CCW-328AF | Rotron Incorporated (USA) |
| 021657 PRIMARY | Rotron Incorporated (USA) |
| C7V181Q-7CC | Ashland Electric Products Inc (USA) |
| 331C160H01 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 4140-00-555-1745 is a Fan,centrifugal, manufactured by Rotron Incorporated, classified under FSC 4140 (No Item Name Available). Status: active.
NSN 4140-00-555-1745 has 4 cross-referenced part numbers: DRFS-KS507CCW-328AF (Rotron Incorporated), 021657 (Rotron Incorporated), C7V181Q-7CC (Ashland Electric Products Inc), 331C160H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
There is 1 known substitute for 4140-00-555-1745: 6530-01-501-0551. Verify interchangeability with system specifications before substitution.
Key specifications for 021657: Surface Treatment: ZINC BLADE; Rotation Direction for Which Designed: COUNTERCLOCKWISE; Inclosure Type: FULLY INCLOSED; Stage Quantity: 1. 30 total characteristics are documented in the Federal Logistics Information System.