# NSN 4820-00-813-0604: Valve, Safety Relief

NSN 4820-00-813-0604 (also written 4820008130604; NIIN 00-813-0604) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-00-813-0604 (4820008130604)
- NIIN: 00-813-0604 (008130604)
- Item name: VALVE,SAFETY RELIEF
- 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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 450.0 |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | SECOND END THREADED EXTERNAL PIPE |
| THSD | THREAD SERIES DESIGNATOR | FIRST END UNF |
| ADSY | VALVE DISCHARGE FLOW RATE | CUBIC FEET PER MINUTE 25.4 |
| AAJD | THREAD CLASS | 3A |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| CSDC | OPENING PRESSURE SETTING | POUNDS PER SQUARE INCH 300.0 |
| MATT | MATERIAL | BODY COPPER ALLOY |
| AWLS | CONNECTION TYPE | FIRST END THREADED EXTERNAL TUBE |
| AAJF | THREAD DIRECTION | SECOND END RIGHT-HAND |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQRB | SEAT ANGLE | FIRST END DEGREES 45.0 |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE AIR |
| ADSU | DISK LOADING METHOD | SPRING |
| THSD | THREAD SERIES DESIGNATOR | SECOND END NPT |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 0.875 |
| AAJF | THREAD DIRECTION | FIRST END RIGHT-HAND |
| CQJX | NOMINAL THREAD SIZE | SECOND END INCHES 0.500 |
| MATT | MATERIAL | SEAT RUBBER |
| MATT | MATERIAL | FLOW CONTROL DEVICE COPPER ALLOY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 2077-71 | 10018 | AVAHO ACQUISITION CORP DBA IMPAC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5432-200LB | 28193 | HENRY TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5454 1-2IN | 28193 | HENRY TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5454-200LB | 28193 | HENRY TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A15504 | 41947 | MUELLER BRASS CO. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE7M026P4580](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820008130604) | VALVE, SAFETY RELIEF | AVIARMS SUPPORT CORP | $2,016.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820008130604&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820008130604
- 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/4820-00-813-0604/
JSON: https://nsnexplorer.com/api/nsn/4820-00-813-0604.json