# NSN 4820-00-403-1423: Valve, Check

NSN 4820-00-403-1423 (also written 4820004031423; NIIN 00-403-1423) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-00-403-1423 (4820004031423)
- NIIN: 00-403-1423 (004031423)
- 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 2026-10-27)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADSU | DISK LOADING METHOD | SPRING |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| MATT | MATERIAL | SEAT COPPER ALLOY AND STEEL COMP 303 |
| THSD | THREAD SERIES DESIGNATOR | FIRST END UN |
| CQRB | SEAT ANGLE | FIRST END DEGREES 12.0 |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | FIRST END INCHES 2.000 |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 2.500 |
| AHNC | CONNECTION STYLE | — |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0 |
| STYL | STYLE DESIGNATOR | — |
| AAJF | THREAD DIRECTION | FIRST END RIGHT-HAND |
| AWLS | CONNECTION TYPE | FIRST END THREADED EXTERNAL TUBE |
| BBJX | MOUNTING POSITION | HORIZONTAL OR VERTICAL |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE HYDRAULIC FLUID, PHOSPHATE-ESTER BASE |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| AAJD | THREAD CLASS | 3A |
| MATT | MATERIAL | FLOW CONTROL DEVICE COPPER ALLOY AND STEEL COMP 303 |
| MATT | MATERIAL | BODY COPPER ALLOY AND STEEL COMP 303 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 418420-3 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-02 | [SPE7M826D60EC/SPE7M426F1543](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820004031423) | VALVE, CHECK | REMOTE CONTROLS INC DBA REMOTE CONTROLS INC | $13,503.20 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820004031423&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820004031423
- 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/4820-00-403-1423/
JSON: https://nsnexplorer.com/api/nsn/4820-00-403-1423.json