# NSN 4310-00-363-4030: Connecting Rod, Piston

NSN 4310-00-363-4030 (also written 4310003634030; NIIN 00-363-4030) is a connecting rod, piston in Federal Supply Class 4310, Compressors and Vacuum Pumps. 4 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4310-00-363-4030 (4310003634030)
- NIIN: 00-363-4030 (003634030)
- Item name: CONNECTING ROD,PISTON
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| BQBY | PISTON CONNECTING END LUBRICATION DRILL FEATURE | INCLUDED |
| BQBW | BEARING REPLACEABILITY | REPLACEABLE |
| BQCF | SHAFT CONNECTING END EDGE RADIUS | INCHES NOMINAL 3.125 |
| AXPW | END THICKNESS | INCHES NOMINAL 1.500 |
| AKEU | SHAFT CONNECTING END STYLE | — |
| BQBP | END HOLE INSIDE DIAMETER | INCHES NOMINAL 2.000 |
| BQBT | PISTON CONNECTING END BEARING | INCLUDED |
| BRNH | BODY WIDTH AT PISTON CONNECTING END | INCHES NOMINAL 1.937 |
| BRNJ | BODY WIDTH AT SHAFT CONNECTING END | INCHES NOMINAL 2.125 |
| BRNK | BODY THICKNESS AT PISTON CONNECTING END | INCHES NOMINAL 0.937 |
| BRNL | BODY THICKNESS AT SHAFT CONNECTING END | INCHES NOMINAL 0.968 |
| BXYS | PISTON END CONNECTION STYLE | — |
| MATT | MATERIAL | STEEL |
| BQCZ | SHAFT CONNECTING END LUBRICATION DRILL FEATURE | INCLUDED |
| BQDB | SHAFT CONNECTING END LUBRICATION METHOD | SPLASH |
| BRNG | CENTER TO CENTER EFFECTIVE LENGTH | INCHES NOMINAL 10.500 |
| BQCH | SHAFT CONNECTING END THICKNESS | INCHES NOMINAL 1.125 |
| BQCY | SHAFT CONNECTING END BEARING REPLACEABILITY | REPLACEABLE |
| BQBN | EDGE RADIUS | INCHES NOMINAL 1.625 |
| BQCB | SHAFT CONNECTING END BEARING | INCLUDED |
| BQCC | SHAFT CONNECTING END HOLE INSIDE DIAMETER | INCHES NOMINAL 3.000 |
| BQBZ | PISTON CONNECTING END LUBRICATION METHOD | SPLASH |
| AARN | FABRICATION METHOD | FORGED |
| BQCG | SHAFT CONNECTING END WIDTH | INCHES NOMINAL 4.625 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| MLH34637G1 | 0AT62 | SIEMENS ENERGY, INC. DBA DRESSER-RAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MLH34637G1 | 30760 | INGERSOLL RAND CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MLH34637G1 | 88663 | DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MLH34637G1 | 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/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE7M126PA293](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310003634030) | CONNECTING ROD, PIST | WKF (FRIEDMAN) ENTERPRISES, INC. | $156,750.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310003634030&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310003634030
- 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/4310-00-363-4030/
JSON: https://nsnexplorer.com/api/nsn/4310-00-363-4030.json