# NSN 4820-01-171-1728: Valve, Check

NSN 4820-01-171-1728 (also written 4820011711728; NIIN 01-171-1728) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-171-1728 (4820011711728)
- NIIN: 01-171-1728 (011711728)
- Item name: VALVE,CHECK
- Federal Supply Class: [FSC 4820 Valves, Nonpowered](https://nsnexplorer.com/fsc/4820/)
- Federal Supply Group: [FSG 48](https://nsnexplorer.com/group/48/)
- Acquisition method suffix code: AMSC L: annual buy value is below the screening threshold. (observed 2026-10-27)
- Acquisition method code: 3

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 19811 | 91161 | ELECTRO IMPULSE LABORATORY INC DBA ELECTRO IMPULSE INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL0631650 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-03 | [SPE7MC26V4170](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011711728) | VALVE, CHECK | KAMPI COMPONENTS CO INC | $2,449.98 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820011711728&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011711728
- 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/4820-01-171-1728/
JSON: https://nsnexplorer.com/api/nsn/4820-01-171-1728.json