# NSN 4310-01-574-4435: Vacuum Pump Unit, Rotary

NSN 4310-01-574-4435 (also written 4310015744435; NIIN 01-574-4435) is a vacuum pump unit, rotary in Federal Supply Class 4310, Compressors and Vacuum Pumps. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4310-01-574-4435 (4310015744435)
- NIIN: 01-574-4435 (015744435)
- Item name: VACUUM PUMP UNIT,ROTARY
- Federal Supply Class: [FSC 4310 Compressors and Vacuum Pumps](https://nsnexplorer.com/fsc/4310/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | REFRIGERATION PLANT AIR CNDN |
| AENC | PUMP QUANTITY | 1 |
| AKDJ | PRIME MOVER TYPE | ELECTRIC MOTOR |
| AAYD | STAGE QUANTITY | 2 |
| FEAT | SPECIAL FEATURES | 15 MICRONS; TEMP. RISE 40 DEG.C; 2 -STAGE ROTARY VANE; MOTOR, 1/2 HP, SINGLE PHASE VOLTAGE, 115 V, 60 CYCLE, 4.0 CFM |
| AEQC | OPERATING SPEED AT RATED CAPACITY IN RPM | 1725.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 93540 | 11284 | RITCHIE ENGINEERING CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 93740 | 11284 | RITCHIE ENGINEERING CO INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-27 | [SPE7M326V4361](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310015744435) | VACUUM PUMP UNIT, RO | NAUTIC-SPORT, INC. DBA NAUTIC SPORT INC | $1,967.07 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310015744435&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310015744435
- 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/4310-01-574-4435/
JSON: https://nsnexplorer.com/api/nsn/4310-01-574-4435.json