# NSN 4320-01-518-5050: Pump, Centrifugal

NSN 4320-01-518-5050 (also written 4320015185050; NIIN 01-518-5050) is a pump, centrifugal in Federal Supply Class 4320, Power and Hand Pumps. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4320-01-518-5050 (4320015185050)
- NIIN: 01-518-5050 (015185050)
- Item name: 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TMDN | TYPE/MODEL DESIGNATION | DARLEY PSE1000 |
| AHYZ | OPERATING SPEED AT RATED CAPACITY | REVOLUTIONS PER MINUTE 1790.0 |
| AGAV | END ITEM IDENTIFICATION | 4210-01-486-1035 |
| AHYV | MAXIMUM DISCHARGE FLOW RATE | GALLONS PER MINUTE 1000.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | PUMP |
| FEAT | SPECIAL FEATURES | ENGINE MODEL: DEUTZBF6M1013C 208HP 24V, PUMP TRANSMISSION RATIO:1.83:1, TRANSMISSION ORIENTATION: INVERTED, IMPELLER DIA: 11IN., IMPELLER DESIGN: SPLINED, END-SUCTION WITH DOUBLE LABYRINTH SEAL RINGS, DRIVE SHAFT: 1.38IN.-10 SPLINED, HEAT TREATED, SILICON CARBIDE MECHANICAL SEAL, INLET: 6IN. VICTAULIC, OUTLET: 5IN. WELD FLANGE. |
| AAYW | DISCHARGE CONNECTION TYPE | ROUND FLANGE |
| AHZD | PUMP ROTATION DIRECTION | COUNTERCLOCKWISE |
| AJAC | DRIVE SHAFT END DIAMETER | INCHES NOMINAL 1.380 |
| AHZG | CENTRIFUGAL PUMP IMPELLER SUCTION TYPE | DOUBLE |
| AHZK | END ITEM NAME | CHEMTT |
| AAYD | STAGE QUANTITY | 1 |
| AAYT | INTAKE CONNECTION QUANTITY | 1 |
| AAYV | DISCHARGE CONNECTION QUANTITY | 1 |
| AHZF | CENTRIFUGAL PUMP IMPELLER QUANTITY | 1 |
| AAYX | DRIVE CONNECTION TYPE | GEAR |
| AHYY | SUCTION LIFT | FEET 10.000 |
| AHYW | DISCHARGE PRESSURE | POUNDS PER SQUARE INCH GAUGE (PSIG) 150.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| FP00900 | 5B337 | W S DARLEY & CO DIV DARLEY PUMP DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PSE1000 | 5B337 | W S DARLEY & CO DIV DARLEY PUMP DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-11 | [SPE7M126P9461](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320015185050) | PUMP, CENTRIFUGAL | KAMPI COMPONENTS CO INC | $57,785.52 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4320015185050&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320015185050
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/4320-01-518-5050/
JSON: https://nsnexplorer.com/api/nsn/4320-01-518-5050.json