# NSN 4820-01-237-8312: Valve, Safety Relief

NSN 4820-01-237-8312 (also written 4820012378312; NIIN 01-237-8312) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 7 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-237-8312 (4820012378312)
- NIIN: 01-237-8312 (012378312)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADQU | FLOW CONTROL DEVICE | DISK |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | ALL ENDS INCHES 1.250 |
| MATT | MATERIAL | STEM STEEL CORROSION RESISTING |
| MATT | MATERIAL | BODY COPPER ALLOY 922 |
| MATT | MATERIAL | SEAT NICKEL ALLOY |
| MATT | MATERIAL | FLOW CONTROL DEVICE NICKEL ALLOY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1384 1-1/4IN 20T35PSI | 35795 | LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BASAA04SFF | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BASAA04SFF | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D11400M | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D50UU-04 1.25IN | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D50UU-04 1.25IN | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D50UU-04-1.25-1.25 | 65079 | DANCO VALVE COMPANY | [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=4820012378312&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012378312
- 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/4820-01-237-8312/
JSON: https://nsnexplorer.com/api/nsn/4820-01-237-8312.json