# NSN 2805-01-157-4643: Ring, Piston

NSN 2805-01-157-4643 (also written 2805011574643; NIIN 01-157-4643) is a ring, piston in Federal Supply Class 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 2805-01-157-4643 (2805011574643)
- NIIN: 01-157-4643 (011574643)
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | — |
| ACXF | RADIAL WALL THICKNESS | INCHES MINIMUM 0.0300 AND INCHES MAXIMUM 0.0320 |
| ACXJ | OVERALL WIDTH | INCHES MINIMUM 0.0740 AND INCHES MAXIMUM 0.0780 |
| MATT | MATERIAL | OVERALL PLASTIC POLYTETRAFLUOROETHYLENE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MFR REF SINGLE MATERIAL RESPONSE A50TF22-CL-A,FSC- 99207 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10106402 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3026T94P01 | 99207 | GENERAL ELECTRIC COMPANY DBA GE AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-02 | $72.16 | 33 | POLYTECH DEFENSE SPARES LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2805011574643) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-02 | [SPE7L527V0014](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2805011574643) | RING, PISTON | POLYTECH DEFENSE SPARES LLC | $2,381.28 |
| 2026-09-21 | [SPE4A626P0ZZQ](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2805011574643) | RING, PISTON | POLYTECH DEFENSE SPARES LLC | $325.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2805011574643&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2805011574643
- 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/2805-01-157-4643/
JSON: https://nsnexplorer.com/api/nsn/2805-01-157-4643.json