# NSN 4820-00-720-0840: Valve, Check

NSN 4820-00-720-0840 (also written 4820007200840; NIIN 00-720-0840) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-00-720-0840 (4820007200840)
- NIIN: 00-720-0840 (007200840)
- 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 2026-10-27)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | FIRST END INCHES 3.500 |
| CWCD | NOMINAL OUTSIDE DIAMETER | FIRST END INCHES 3.880 |
| CWCD | NOMINAL OUTSIDE DIAMETER | SECOND END INCHES 4.070 |
| CWCF | FACE TO FACE DISTANCE | INCHES 1.500 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | SECOND END INCHES 3.350 |
| AWLS | CONNECTION TYPE | SECOND END FLANGE |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 205.0 |
| CWDF | FLANGE FACE DESIGN | FIRST END PLAIN |
| CWDF | FLANGE FACE DESIGN | SECOND END PLAIN |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE AIR |
| STYL | STYLE DESIGNATOR | — |
| ARKN | FLANGE SHAPE | SECOND END ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | FIRST END FLANGE |
| ARKN | FLANGE SHAPE | FIRST END ROUND WITH HOLES |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 670.0 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | FIRST END INCHES 0.356 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | SECOND END INCHES 0.255 |
| ADQU | FLOW CONTROL DEVICE | DISK |
| AECS | BOLT HOLE QUANTITY | 6 |
| AECS | BOLT HOLE QUANTITY | 8 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 107296-1 | 70210 | HONEYWELL INTERNATIONAL INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 107296-4 | 59364 | HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 107296-4 | 75201 | BAHR MACHINE COMPANY INC DBA BAHR MACHINE CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 107296-4 | 99193 | HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8000-4 | 75201 | BAHR MACHINE COMPANY INC DBA BAHR MACHINE CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DYLZ6244-2 | 05624 | GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-08 | [SPE7M126V123R](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820007200840) | VALVE, CHECK | BAHR MACHINE COMPANY INC DBA BAHR MACHINE CO | $141,950.90 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820007200840&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820007200840
- 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/4820-00-720-0840/
JSON: https://nsnexplorer.com/api/nsn/4820-00-720-0840.json