# NSN 4320-01-181-8659: Pump, Rotary

NSN 4320-01-181-8659 (also written 4320011818659; NIIN 01-181-8659) is a pump, rotary in Federal Supply Class 4320, Power and Hand Pumps. 5 manufacturer part numbers from 1 supplier are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4320-01-181-8659 (4320011818659)
- NIIN: 01-181-8659 (011818659)
- Item name: PUMP,ROTARY
- 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 |
| --- | --- | --- |
| AAXX | MOUNTING TYPE | BASE |
| AAYT | INTAKE CONNECTION QUANTITY | 1 |
| AAYU | INTAKE CONNECTION TYPE | ROUND FLANGE |
| AAYV | DISCHARGE CONNECTION QUANTITY | 1 |
| AAYW | DISCHARGE CONNECTION TYPE | ROUND FLANGE |
| AAYX | DRIVE CONNECTION TYPE | RIGID COUPLED |
| AGAV | END ITEM IDENTIFICATION | VIKING PUMPS MODEL BA-1311 ROTARY PUMP UNIT |
| AHYV | MAXIMUM DISCHARGE FLOW RATE | GALLONS PER MINUTE 35.0 |
| AHYW | DISCHARGE PRESSURE | POUNDS PER SQUARE INCH GAUGE (PSIG) 50.0 |
| AHYZ | OPERATING SPEED AT RATED CAPACITY | REVOLUTIONS PER MINUTE 1150.0 |
| AHZD | PUMP ROTATION DIRECTION | CLOCKWISE |
| AHZR | ROTARY PUMP DESIGN | GEAR |
| AJAB | DRIVE SHAFT TYPE | MACHINE KEYWAY |
| APHE | OPERATION METHOD | POWERED |
| MEDA | MEDIA FOR WHICH DESIGNED | LOCATION NOT OTHERWISE SPECIFIED FUEL/OIL, HYDROCARBON |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5-1910-2942-503 | 63097 | VIKING PUMP, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BA-1311 | 63097 | VIKING PUMP, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BA-1311-1 | 63097 | VIKING PUMP, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BA-1311-ITEM 1 | 63097 | VIKING PUMP, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BA-1344-1 | 63097 | VIKING PUMP, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M1-27-T-0289 | 3 | 2026-10-19 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4320011818659&category=nsn) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE7M126PA684](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320011818659) | PUMP, ROTARY | — | $24,365.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4320011818659&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320011818659
- 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/4320-01-181-8659/
JSON: https://nsnexplorer.com/api/nsn/4320-01-181-8659.json