# NSN 2805-00-255-9099: Ring, Piston

NSN 2805-00-255-9099 (also written 2805002559099; NIIN 00-255-9099) is a ring, piston in Federal Supply Class 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 2805-00-255-9099 (2805002559099)
- NIIN: 00-255-9099 (002559099)
- Item name: RING,PISTON
- Federal Supply Class: [FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components](https://nsnexplorer.com/fsc/2805/)
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACXJ | OVERALL WIDTH | INCHES NOMINAL 0.1550 |
| MATT | MATERIAL | OVERALL IRON |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| ZZZV | FSC APPLICATION DATA | REFRIGERATION COMPRESSOR |
| ACXD | RING STYLE | — |
| ADTE | JOINT STYLE | — |
| CQKZ | OIL PASSAGE TYPE AND QUANTITY | HORIZONTALLY THROUGH RING SLOT 8 |
| ACXZ | STANDARD BORE DIAMETER | INCHES 2.500 |
| ACXF | RADIAL WALL THICKNESS | INCHES MINIMUM 0.1100 AND INCHES MAXIMUM 0.1150 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 17-10518-00 | 10855 | CARRIER CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5F20-1091 | 10855 | CARRIER CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5F20-1091-10855 | 19422 | DEMARKUS CORP REFRIGERATION ENGINEERING CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2805002559099&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2805002559099
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/2805-00-255-9099/
JSON: https://nsnexplorer.com/api/nsn/2805-00-255-9099.json