# NSN 4820-01-523-9689: Valve, Safety Relief

NSN 4820-01-523-9689 (also written 4820015239689; NIIN 01-523-9689) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-523-9689 (4820015239689)
- NIIN: 01-523-9689 (015239689)
- 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 |
| --- | --- | --- |
| ADSU | DISK LOADING METHOD | SPRING |
| AECS | BOLT HOLE QUANTITY | 6 |
| AGAV | END ITEM IDENTIFICATION | CVN69 |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| CCFG | VALVE SIZE | INCHES 1.500 |
| CQCY | ADJUSTABLE PRESSURE RANGE | POUNDS PER SQUARE INCH 45.0 TO 75.0 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 5.062 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 0.812 |
| CWCL | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | INCHES 4.700 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | ALL ENDS INCHES 0.562 |
| CWCR | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | INCHES 4.700 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | ALL ENDS INCHES 3.937 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS PLAIN |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | VALVE, ANGLE RELIEF |
| MATT | MATERIAL | BODY BRONZE |
| MATT | MATERIAL | FLOW CONTROL DEVICE NICKEL ALLOY |
| MATT | MATERIAL | SEAT NICKEL ALLOY |
| MATT | MATERIAL | STEM NICKEL ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY ASSN STD SINGLE MATERIAL RESPONSE AST--B61 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FLOW CONTROL DEVICE FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | STEM FED SPEC SINGLE MATERIAL RESPONSE QQ-N-281 |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE LIQUID |
| STYL | STYLE DESIGNATOR | — |
| TMQY | FURNISHED ITEMS AND QUANTITY | LEVER 1 |
| ZZZK | SPECIFICATION/STANDARD DATA | GOVERNMENT SPECIFICATION 81349 - -IL-V-24332(2). GR B |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 11200FF-4 | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BBMHH05MGG | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BBMHH05MGG | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| BBMHH05MGG/CD11200FF-4 | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D11200FF | 65079 | DANCO VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D11200FF ASSY BBMHH05MGG | 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=4820015239689&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015239689
- 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/4820-01-523-9689/
JSON: https://nsnexplorer.com/api/nsn/4820-01-523-9689.json