# NSN 4820-01-415-0802: Valve, Safety Relief, Oxygen Syste

NSN 4820-01-415-0802 (also written 4820014150802; NIIN 01-415-0802) is a valve, safety relief, oxygen syste in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-415-0802 (4820014150802)
- NIIN: 01-415-0802 (014150802)
- Item name: VALVE,SAFETY RELIEF,OXYGEN SYSTE
- 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 |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | SECOND END RIGHT-HAND |
| AAJF | THREAD DIRECTION | FIRST END RIGHT-HAND |
| AEQJ | MINIMUM OPERATING TEMP | FAHRENHEIT -320.0 |
| AGAV | END ITEM IDENTIFICATION | TMU-24/E |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | SECOND END THREADED INTERNAL PIPE |
| AWLS | CONNECTION TYPE | FIRST END THREADED EXTERNAL PIPE |
| CQJX | NOMINAL THREAD SIZE | SECOND END INCHES 0.750 |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 0.500 |
| CSDC | OPENING PRESSURE SETTING | POUNDS PER SQUARE INCH 55.0 |
| FEAT | SPECIAL FEATURES | W/O LEVER |
| MATT | MATERIAL | BODY COPPER ALLOY |
| MEDA | MEDIA FOR WHICH DESIGNED | FLOW CONTROL DEVICE OXYGEN, LIQUID |
| MEDA | MEDIA FOR WHICH DESIGNED | BODY LINING NITROGEN, LIQUID |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | FIRST END NPT |
| THSD | THREAD SERIES DESIGNATOR | SECOND END NPT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 508-0116-3-55 | 0D4Y1 | ROCKWOOD SWENDEMAN | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 50C-0033-0268 | 19062 | ESSEX INDUSTRIES, INC. DBA ESSEX INDUSTRIES | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 710NACD-A | 0D4Y1 | ROCKWOOD SWENDEMAN | [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=4820014150802&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014150802
- 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/4820-01-415-0802/
JSON: https://nsnexplorer.com/api/nsn/4820-01-415-0802.json