# NSN 4820-01-421-4710: Valve, Check

NSN 4820-01-421-4710 (also written 4820014214710; NIIN 01-421-4710) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-421-4710 (4820014214710)
- NIIN: 01-421-4710 (014214710)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADQU | FLOW CONTROL DEVICE | DISK |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| CCFG | VALVE SIZE | INCHES 4.000 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 150.0 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 9.000 |
| CWCF | FACE TO FACE DISTANCE | INCHES 11.250 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 0.688 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS PLAIN |
| MATT | MATERIAL | FLOW CONTROL DEVICE COPPER ALLOY |
| MATT | MATERIAL | BODY COPPER ALLOY |
| MATT | MATERIAL | SEAT COPPER ALLOY |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| B1620A-4IN | 11859 | HUNT VALVE COMPANY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B1620A-4IN | 30263 | PIMA VALVE, LLC | [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=4820014214710&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014214710
- 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/4820-01-421-4710/
JSON: https://nsnexplorer.com/api/nsn/4820-01-421-4710.json