# NSN 4140-01-275-8373: Impeller, Fan, Centrifugal

NSN 4140-01-275-8373 (also written 4140012758373; NIIN 01-275-8373) is an impeller, fan, centrifugal in Federal Supply Class 4140, Fans, Air Circulators, and Blower Equipment. 4 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4140-01-275-8373 (4140012758373)
- NIIN: 01-275-8373 (012758373)
- Item name: IMPELLER,FAN,CENTRIFUGAL
- Federal Supply Class: [FSC 4140 Fans, Air Circulators, and Blower Equipment](https://nsnexplorer.com/fsc/4140/)
- Federal Supply Group: [FSG 41](https://nsnexplorer.com/group/41/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AYSY | ROTATION DIRECTION FOR WHICH DESIGNED | COUNTERCLOCKWISE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 7W-33445-11 | 09519 | NEW PHILADELPHIA FAN CO BUFFALO FORGE MARINE FANS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7W-33445-11 | 75477 | FM AF, LLC DBA AMERICAN FAN COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7W-33445-11/MCD-5474 | 09519 | NEW PHILADELPHIA FAN CO BUFFALO FORGE MARINE FANS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7W-33445-11/MCD-5474 | 75477 | FM AF, LLC DBA AMERICAN FAN COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4140012758373&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4140012758373
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

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