# NSN 2815-01-456-6966: Piston, Internal Combustion Engin

NSN 2815-01-456-6966 (also written 2815014566966; NIIN 01-456-6966) is a piston, internal combustion engin in Federal Supply Class 2815, Diesel Engines and Components. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2815-01-456-6966 (2815014566966)
- NIIN: 01-456-6966 (014566966)
- 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 L: annual buy value is below the screening threshold. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AASK | HEAD STYLE | — |
| ABFF | FURNISHED ITEMS | OIL GROOVE AND RETAINING RING GROOVE |
| AGAV | END ITEM IDENTIFICATION | CATERPILLAR, MARINE ENGINE, MODEL 3406B |
| AXFT | SKIRT TYPE | SOLID |
| AXFZ | RING GROOVE QUANTITY | 3 |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | FLOATING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 378-0509 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9Y4004 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE7LX21D0087/SPE7LX26FBK14](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815014566966) | PISTON, INTERNAL COMBUSTION ENGINE | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $541.92 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2815014566966&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815014566966
- 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/2815-01-456-6966/
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