# NSN 2815-01-434-5178: Piston, Internal Combustion Engin

NSN 2815-01-434-5178 (also written 2815014345178; NIIN 01-434-5178) is a piston, internal combustion engin in Federal Supply Class 2815, Diesel Engines and Components. 3 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2815-01-434-5178 (2815014345178)
- NIIN: 01-434-5178 (014345178)
- Item name: PISTON,INTERNAL COMBUSTION ENGIN
- Federal Supply Class: [FSC 2815 Diesel Engines and Components](https://nsnexplorer.com/fsc/2815/)
- Federal Supply Group: [FSG 28](https://nsnexplorer.com/group/28/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AASK | HEAD STYLE | — |
| ABFF | FURNISHED ITEMS | SKIRT BOTTOM CUTAWAY FEATURE AND OIL GROOVE AND RETAINING RING GROOVE |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 6.611 |
| ABMZ | DIAMETER | INCHES NOMINAL 6.975 |
| ACXM | OIL PASSAGE TYPE | LOCATION NOT OTHERWISE SPECIFIED SLOT |
| ACXU | PINHOLE DIAMETER | INCHES NOMINAL 2.1270 |
| AGAV | END ITEM IDENTIFICATION | 2815-01-414-6821 |
| AXFT | SKIRT TYPE | SOLID |
| AXFW | CUT DEPTH | INCHES NOMINAL 0.380 |
| AXFZ | RING GROOVE QUANTITY | 4 |
| AXPK | DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | INCHES NOMINAL 3.391 |
| AXPM | DISTANCE BETWEEN PIN BOSSES | INCHES NOMINAL 4.855 |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | FLOATING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| E8DR104-006 | 02978 | RENK AMERICA LLC DIV RENK AMERICA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| E8DR104-006 | 3NNX8 | BRIGHTON CROMWELL LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| E8DR104-006-1 | 02978 | RENK AMERICA LLC DIV RENK AMERICA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-01 | [SPE7LX26D0036/SPE7L126F159S](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815014345178) | PISTON, INTERNAL COMBUSTION ENGINE | EOS INC DBA EOS INC | $1,195,034.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2815014345178&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815014345178
- 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/2815-01-434-5178/
JSON: https://nsnexplorer.com/api/nsn/2815-01-434-5178.json