# NSN 4310-01-194-6831: Ring Set, Piston

NSN 4310-01-194-6831 (also written 4310011946831; NIIN 01-194-6831) is a ring set, piston in Federal Supply Class 4310, Compressors and Vacuum Pumps. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4310-01-194-6831 (4310011946831)
- NIIN: 01-194-6831 (011946831)
- Item name: RING SET,PISTON
- Federal Supply Class: [FSC 4310 Compressors and Vacuum Pumps](https://nsnexplorer.com/fsc/4310/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ACXZ | STANDARD BORE DIAMETER | INCHES 1.750 |
| AETD | PISTON ACCOMMODATION QUANTITY | 1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 37138237 | 6K358 | INGERSOLL-RAND COMPANY- PARTS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 37138237 | 88663 | DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| W114364T19 | 51436 | INGERSOLL-RAND COMPANY DBA INGERSOLL-RAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| W114364T19 AND 37138237 | 51436 | INGERSOLL-RAND COMPANY DBA INGERSOLL-RAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-01 | $235.48 | 8 | LARKOS PACKING AND DISTRIBUTION INC. | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310011946831) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-01 | [SPE7M126PA058](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310011946831) | RING SET, PISTON | KAMPI COMPONENTS CO INC | $1,046.80 |
| 2026-09-01 | [SPE7M126V089F](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310011946831) | RING SET, PISTON | LARKOS PACKING AND DISTRIBUTION INC. | $1,883.84 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4310011946831&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4310011946831
- 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/4310-01-194-6831/
JSON: https://nsnexplorer.com/api/nsn/4310-01-194-6831.json