# NSN 2815-00-994-4429: Ring, Piston

NSN 2815-00-994-4429 (also written 2815009944429; NIIN 00-994-4429) is a ring, piston in Federal Supply Class 2815, Diesel Engines and Components. 9 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 2815-00-994-4429 (2815009944429)
- NIIN: 00-994-4429 (009944429)
- Item name: RING,PISTON
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACXF | RADIAL WALL THICKNESS | INCHES NOMINAL 0.2400 |
| ACXD | RING STYLE | — |
| ADTE | JOINT STYLE | — |
| CQKZ | OIL PASSAGE TYPE AND QUANTITY | HORIZONTALLY THROUGH RING SLOT 12 |
| CQKZ | OIL PASSAGE TYPE AND QUANTITY | OUTSIDE PERIPHERY GROOVE 1 |
| MATT | MATERIAL | OVERALL STEEL |
| SFTT | SURFACE TREATMENT | OVERALL CHROMIUM |
| ACXZ | STANDARD BORE DIAMETER | INCHES 5.500 |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| ACXJ | OVERALL WIDTH | INCHES MINIMUM 0.1860 AND INCHES MAXIMUM 0.1870 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10395927 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 122560 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 165370 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 194610 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 218732 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2815009944429 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3064398 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4058969 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AR05100 | 15434 | CUMMINS INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-14 | [SPE7LX21D0007/SPE7L126FACV3](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815009944429) | RING, PISTON | CUMMINS INC DIV CUMMINS SALES AND SERVICE | $36.17 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2815009944429&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2815009944429
- 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/2815-00-994-4429/
JSON: https://nsnexplorer.com/api/nsn/2815-00-994-4429.json