# NSN 4820-00-055-5114: Valve, Safety Relief

NSN 4820-00-055-5114 (also written 4820000555114; NIIN 00-055-5114) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-00-055-5114 (4820000555114)
- NIIN: 00-055-5114 (000555114)
- 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: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | ALL ENDS INCHES 0.375 |
| AAJF | THREAD DIRECTION | ALL ENDS RIGHT-HAND |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE FUEL/OIL, HYDROCARBON |
| THSD | THREAD SERIES DESIGNATOR | ALL ENDS UNF |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| SFTT | SURFACE TREATMENT | LOCATION NOT OTHERWISE SPECIFIED ANODIZE |
| AAJD | THREAD CLASS | 3B |
| STYL | STYLE DESIGNATOR | — |
| MATT | MATERIAL | BODY ALUMINUM ALLOY |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 275.0 |
| CSDC | OPENING PRESSURE SETTING | POUNDS PER SQUARE INCH 240.0 |
| CQJX | NOMINAL THREAD SIZE | ALL ENDS INCHES 0.562 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | LOCATION NOT OTHERWISE SPECIFIED MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625 |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | GALLONS PER MINUTE 3.5 |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 275.0 |
| AHNC | CONNECTION STYLE | — |
| MATT | MATERIAL | SEAT ALUMINUM ALLOY |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED INTERNAL BOSS |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| MATT | MATERIAL | FLOW CONTROL DEVICE STEEL CORROSION RESISTING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 117SCH104-5 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HP368100-5 | 70236 | TACTAIR FLUID CONTROLS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HP368100-5 | 84685 | TELEDYNE HYDRA-POWER DIV OF TELEDYNE INC | [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=4820000555114&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820000555114
- 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/4820-00-055-5114/
JSON: https://nsnexplorer.com/api/nsn/4820-00-055-5114.json