# NSN 4820-01-528-4311: Valve, Safety Relief

NSN 4820-01-528-4311 (also written 4820015284311; NIIN 01-528-4311) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-528-4311 (4820015284311)
- NIIN: 01-528-4311 (015284311)
- 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 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADSU | DISK LOADING METHOD | SPRING |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
| AWLS | CONNECTION TYPE | FIRST END FLANGE |
| CWCL | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | INCHES 5.500 |
| CWCR | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | INCHES 6.500 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | 1.5 INCH X 2.5 INCH MODEL MIL-V-20065D TYPE II COMPOSITION D, BELOOW TYPE RELIEF VALVE |
| FEAT | SPECIAL FEATURES | FLANGED ANSI B16.5 (150 LBS.) |
| MATT | MATERIAL | BODY STEEL |
| STYL | STYLE DESIGNATOR | — |
| TMQY | FURNISHED ITEMS AND QUANTITY | LEVER 1 AND ORIFICE PLATE 1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| DNX62-1.5H2.5B PN UBNCNN14CGHJ | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DNX62-1.5H2.5B PN UBNCNN14CGHJ | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| UB1NCNN14JGHJ | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| UBNCNN14CGHJ/CDNX62-15H25B | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| UBNCNN14CGHJ/CDNX62-15H25B | 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=4820015284311&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015284311
- 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/4820-01-528-4311/
JSON: https://nsnexplorer.com/api/nsn/4820-01-528-4311.json