# NSN 4820-00-408-5448: Valve, Check

NSN 4820-00-408-5448 (also written 4820004085448; NIIN 00-408-5448) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-00-408-5448 (4820004085448)
- NIIN: 00-408-5448 (004085448)
- 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 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 |
| --- | --- | --- |
| MEDA | MEDIA FOR WHICH DESIGNED | THIRD RESPONSE FUEL/OIL, HYDROCARBON |
| STYL | STYLE DESIGNATOR | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 5000.0 |
| MATT | MATERIAL | BODY ALUMINUM ALLOY |
| MEDA | MEDIA FOR WHICH DESIGNED | FIFTH RESPONSE HYDROGEN |
| MEDA | MEDIA FOR WHICH DESIGNED | FIRST RESPONSE AIR |
| MEDA | MEDIA FOR WHICH DESIGNED | FOURTH RESPONSE HELIUM |
| AEHZ | MAXIMUM OPERATING TEMP | SECOND RESPONSE FAHRENHEIT 280.0 |
| MEDA | MEDIA FOR WHICH DESIGNED | SECOND RESPONSE ALCOHOL, ETHYL |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| AEHZ | MAXIMUM OPERATING TEMP | FIRST RESPONSE FAHRENHEIT -40.0 |
| BBJX | MOUNTING POSITION | HORIZONTAL OR VERTICAL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 2533403-3 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2533403PC3 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C249A4Q | 91816 | CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC | [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=4820004085448&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820004085448
- 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/4820-00-408-5448/
JSON: https://nsnexplorer.com/api/nsn/4820-00-408-5448.json