# NSN 4820-01-252-3767: Valve, Safety Relief

NSN 4820-01-252-3767 (also written 4820012523767; NIIN 01-252-3767) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 6 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-252-3767 (4820012523767)
- NIIN: 01-252-3767 (012523767)
- 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 R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | ALL ENDS RIGHT-HAND |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADST | BONNET ATTACHMENT METHOD | INTEGRAL |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 300.0 |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | FIRST END THREADED EXTERNAL PIPE |
| AWLS | CONNECTION TYPE | SECOND END THREADED INTERNAL PIPE |
| CQJX | NOMINAL THREAD SIZE | ALL ENDS INCHES 1.500 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 1200.0 |
| CSDC | OPENING PRESSURE SETTING | POUNDS PER SQUARE INCH 300.0 |
| MATT | MATERIAL | FLOW CONTROL DEVICE COPPER ALLOY |
| MATT | MATERIAL | PACKING PLASTIC POLYTETRAFLUOROETHYLENE |
| MATT | MATERIAL | BODY COPPER ALLOY |
| MATT | MATERIAL | STEM COPPER ALLOY |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE HYDRAULIC FLUID, MINERAL BASE |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | ALL ENDS NPT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 0020-G01-MC00300 | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 0020-G01-MG0300 | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 0020-G01-MG0300 | 1X5W8 | EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DBA MARINE PRODUCT TEAM DIV MARINE PRODUCT TEAM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| FIG 20 1 1/2IN | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| FIG 20 1.50IN | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| FIG 20-1 1.50IN | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-23 | $397.02 | 34 | KAMPI COMPONENTS CO INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012523767) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE7MC26V4421](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012523767) | VALVE, SAFETY RELIEF | KAMPI COMPONENTS CO INC | $13,498.68 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820012523767&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012523767
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/4820-01-252-3767/
JSON: https://nsnexplorer.com/api/nsn/4820-01-252-3767.json