# NSN 4310-01-023-6028: Piston Rod, First Stage

NSN 4310-01-023-6028 (also written 4310010236028; NIIN 01-023-6028) is a piston rod, first stage in Federal Supply Class 4310, Compressors and Vacuum Pumps. 3 manufacturer part numbers from 3 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4310-01-023-6028 (4310010236028)
- NIIN: 01-023-6028 (010236028)
- Item name: PISTON ROD,FIRST STAGE
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-20)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | 30-1/8 IN. 0/A LG,ONE END THD 1 IN.-8,UNC-3A THD 3 IN. FULL THD,CENTER SECTION THD,1-1/4-8 UN-2A THD,1-1/8 IN. THD LG THE 2ND END HAS THE LARGEST DIA 1.750 IN. KEYWAY ON THE THD END 0.310 IN. W BY 0.190 IN DEEP BY 2.875 IN. LG,2.375 IN. FROM CENTERLINE OF CROSSHEAD TO END OF ROD,CENTER HOLE IN LARGEST END,5/16 IN. DIA,15/16 IN. DEEP,3/8-16 UNC-3B,9/16 IN. FULL THD |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| H-32728 | 0AT62 | SIEMENS ENERGY, INC. DBA DRESSER-RAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H-32728 | 88663 | DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| H32728 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M1-27-T-1096 | 3 | 2026-10-30 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310010236028&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310010236028&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310010236028
- 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/4310-01-023-6028/
JSON: https://nsnexplorer.com/api/nsn/4310-01-023-6028.json