# NSN 2815-00-434-6593: Piston, Internal Combustion Engin

NSN 2815-00-434-6593 (also written 2815004346593; NIIN 00-434-6593) is a piston, internal combustion engin in Federal Supply Class 2815, Diesel Engines and Components. 10 manufacturer part numbers from 8 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 2815-00-434-6593 (2815004346593)
- NIIN: 00-434-6593 (004346593)
- 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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACXU | PINHOLE DIAMETER | INCHES MINIMUM 2.1268 AND INCHES MAXIMUM 2.1270 |
| AXFR | FINISHED SIZE DESIGNATION | OVERSIZE |
| AXGB | RING GROOVE WIDTH | SECOND RING INCHES MINIMUM 0.0990 AND INCHES MAXIMUM 0.1000 |
| ABFF | FURNISHED ITEMS | SKIRT BOTTOM CUTAWAY FEATURE |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 6.870 |
| ABMZ | DIAMETER | INCHES MINIMUM 5.705 AND INCHES MAXIMUM 5.713 |
| AASK | HEAD STYLE | — |
| WGHT | WEIGHT | OUNCES 126.3 |
| AXGD | RING GROOVE DIAMETER | SECOND RING INCHES MINIMUM 5.230 AND INCHES MAXIMUM 5.240 |
| AXFS | OVERSIZE | INCHES NOMINAL 0.020 |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | FLOATING |
| MATT | MATERIAL | STEEL |
| AGYE | SURFACE FINISH | FINISHED |
| AXFZ | RING GROOVE QUANTITY | 4 |
| AXGB | RING GROOVE WIDTH | FIRST RING INCHES MINIMUM 0.0995 AND INCHES MAXIMUM 0.1005 |
| AXGB | RING GROOVE WIDTH | THIRD RING INCHES MINIMUM 0.0980 AND INCHES MAXIMUM 0.0990 |
| AXGC | GROOVE TAPER ANGLE | 7 DEGREE 20 MINUTES PLUS 10 MINUTES |
| AXGD | RING GROOVE DIAMETER | FIRST RING INCHES MINIMUM 5.207 AND INCHES MAXIMUM 5.212 |
| AXGD | RING GROOVE DIAMETER | FOURTH RING INCHES MINIMUM 5.189 AND INCHES MAXIMUM 5.199 |
| AXFW | CUT DEPTH | INCHES NOMINAL 5.120 |
| AXGB | RING GROOVE WIDTH | FOURTH RING INCHES MINIMUM 0.1880 AND INCHES MAXIMUM 0.1890 |
| AXPK | DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | INCHES NOMINAL 4.750 |
| AXFT | SKIRT TYPE | SEMISPLIT |
| AXGD | RING GROOVE DIAMETER | THIRD RING INCHES MINIMUM 5.230 AND INCHES MAXIMUM 5.240 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 11683943 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11683943-2 | 02978 | RENK AMERICA LLC DIV RENK AMERICA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11683943-2 | 0L7R7 | TECMOTIV (USA), INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11683943-2 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11683943-2 | 32842 | MINOWITZ MANUFACTURING CO. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11683943-2 | 3NNX8 | BRIGHTON CROMWELL LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 11683943-2 | 6R738 | MACTEK INDUSTRIES CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2815004346593 | A00AM | E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2815004346593 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 655216-2 | 02978 | RENK AMERICA LLC DIV RENK AMERICA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7L5-27-T-0035 | 52 | 2026-10-19 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2815004346593&category=nsn) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-28 | [SPE7L526P2984](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815004346593) | PISTON, INTERNAL COM | EOS INC DBA EOS INC | $18,130.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2815004346593&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815004346593
- 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.

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