# NSN 4820-01-192-8039: Valve, Safety Relief

NSN 4820-01-192-8039 (also written 4820011928039; NIIN 01-192-8039) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-192-8039 (4820011928039)
- NIIN: 01-192-8039 (011928039)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | ALL ENDS INCHES 0.500 |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSR | BONNET TYPE | OUTSIDE SCREW-YOKE |
| ADST | BONNET ATTACHMENT METHOD | BOLTED |
| ADSY | VALVE DISCHARGE FLOW RATE | GALLONS PER MINUTE 11.8 |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 227.0 |
| AGAV | END ITEM IDENTIFICATION | NIMITZ CLASS CVN |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | ALL ENDS UNTHREADED INTERNAL PIPE |
| CQCY | ADJUSTABLE PRESSURE RANGE | POUNDS PER SQUARE INCH 35.0 TO 44.0 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 400.0 |
| MATT | MATERIAL | BODY COPPER ALLOY |
| MATT | MATERIAL | STEM NICKEL ALLOY |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE WATER, FRESH |
| STYL | STYLE DESIGNATOR | — |
| TMQY | FURNISHED ITEMS AND QUANTITY | BRAZING RING 2 AND GASKET 2 AND WRENCH 1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 20213 | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 20213GS41M AND C | 15187 | EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 20213GS41M AND CDS16249 | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 20213GS41M AND CDS16249 | 15187 | EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MILV24332GRB.50 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [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=4820011928039&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011928039
- 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/4820-01-192-8039/
JSON: https://nsnexplorer.com/api/nsn/4820-01-192-8039.json