# NSN 4320-00-163-1073: Pump, Rotary

NSN 4320-00-163-1073 (also written 4320001631073; NIIN 00-163-1073) is a pump, rotary in Federal Supply Class 4320, Power and Hand Pumps. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4320-00-163-1073 (4320001631073)
- NIIN: 00-163-1073 (001631073)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAYT | INTAKE CONNECTION QUANTITY | 1 |
| AHZR | ROTARY PUMP DESIGN | GEAR |
| AHYV | MAXIMUM DISCHARGE FLOW RATE | GALLONS PER MINUTE 5.4 |
| APHE | OPERATION METHOD | POWERED |
| AAYV | DISCHARGE CONNECTION QUANTITY | 1 |
| AAYW | DISCHARGE CONNECTION TYPE | OVAL FLANGE |
| AAYX | DRIVE CONNECTION TYPE | GEAR |
| AAYU | INTAKE CONNECTION TYPE | OVAL FLANGE |
| MEDA | MEDIA FOR WHICH DESIGNED | LOCATION NOT OTHERWISE SPECIFIED FUEL/OIL, HYDROCARBON |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 21663 | 71871 | ALFA LAVAL INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 21663-HK | 55380 | HATCH & KIRK, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 99121663 | 71871 | ALFA LAVAL INC | [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=4320001631073&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320001631073
- 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/4320-00-163-1073/
JSON: https://nsnexplorer.com/api/nsn/4320-00-163-1073.json