# NSN 4320-00-139-3950: Impeller, Pump, Centrifugal

NSN 4320-00-139-3950 (also written 4320001393950; NIIN 00-139-3950) is an impeller, pump, centrifugal in Federal Supply Class 4320, Power and Hand Pumps. 2 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4320-00-139-3950 (4320001393950)
- NIIN: 00-139-3950 (001393950)
- Item name: IMPELLER,PUMP,CENTRIFUGAL
- Federal Supply Class: [FSC 4320 Power and Hand Pumps](https://nsnexplorer.com/fsc/4320/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AYSY | ROTATION DIRECTION FOR WHICH DESIGNED | CLOCKWISE |
| BDDS | HUB BORE DIAMETER | SINGLE INCHES NOMINAL 2.469 AND INCHES NOMINAL 3.000 |
| BDJW | HUB LOCATION | BACK SIDE AND FRONT SIDE |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 2.313 |
| ABRR | KEYWAY WIDTH | INCHES NOMINAL 0.188 |
| ABRV | KEYWAY DEPTH | INCHES NOMINAL 0.094 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 6.750 |
| AEVE | KEYWAY QUANTITY | 1 |
| AFYS | KEYWAY LENGTH | INCHES NOMINAL 1.375 |
| AJLB | BLADE QUANTITY | 5 |
| APGF | DESIGN TYPE | SINGLE WIDTH |
| CPWW | HUB PROJECTION LENGTH BEYOND WHEEL SIDE | INCHES NOMINAL 1.063 AND INCHES NOMINAL 0.500 |
| ANCT | BLADE TYPE | BACKWARD CURVE |
| AJLJ | HUB LENGTH | FIRST INCHES NOMINAL 0.500 |
| AJLJ | HUB LENGTH | SECOND INCHES NOMINAL 0.500 |
| FEAT | SPECIAL FEATURES | SHAFT DIA ACCOMMODATED IS 0.750 INCH |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| CPWX | KEYWAY TYPE | RECTANGULAR |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| NF12244-000NCU6 | 83130 | AIR & LIQUID SYSTEMS CORPORATION DBA BUFFALO PUMPS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NF12244-000NICU6750 | 83130 | AIR & LIQUID SYSTEMS CORPORATION DBA BUFFALO PUMPS | [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=4320001393950&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320001393950
- 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.

Canonical page: https://nsnexplorer.com/nsn/4320-00-139-3950/
JSON: https://nsnexplorer.com/api/nsn/4320-00-139-3950.json