# NSN 4820-01-423-2033: Valve, Safety Relief

NSN 4820-01-423-2033 (also written 4820014232033; NIIN 01-423-2033) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4820-01-423-2033 (4820014232033)
- NIIN: 01-423-2033 (014232033)
- 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 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJF | THREAD DIRECTION | ALL ENDS RIGHT-HAND |
| AGAV | END ITEM IDENTIFICATION | NAVY WEAPON SYSTEM CODE JS WHIDBY ISLAND CLASS LSD |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED EXTERNAL PIPE |
| CQJX | NOMINAL THREAD SIZE | SECOND END INCHES 1.750 |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 2.750 |
| CWCD | NOMINAL OUTSIDE DIAMETER | SECOND END INCHES 1.750 |
| CWCD | NOMINAL OUTSIDE DIAMETER | FIRST END INCHES 2.750 |
| MATT | MATERIAL | FLOW CONTROL DEVICE STEEL CORROSION RESISTING |
| MATT | MATERIAL | BODY NICKEL ALLOY |
| MATT | MATERIAL | SEAT STEEL CORROSION RESISTING |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | ALL ENDS NPT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| PLC-10679 | 99565 | ADMIRAL VALVE LLC DBA CPV MANUFACTURING | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| PLC-10679-B | 99565 | ADMIRAL VALVE LLC DBA CPV MANUFACTURING | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-18 | [SPE7MC26V4099](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014232033) | VALVE, SAFETY RELIEF | PCX INC | $3,229.17 |
| 2026-08-18 | [SPE7MC26V4094](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014232033) | VALVE, SAFETY RELIEF | PCX INC | $3,229.17 |
| 2026-08-18 | [SPE7MC26V4086](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014232033) | VALVE, SAFETY RELIEF | PCX INC | $3,229.17 |
| 2026-08-18 | [SPE7MC26V4080](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014232033) | VALVE, SAFETY RELIEF | PCX INC | $9,687.51 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820014232033&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014232033
- 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/4820-01-423-2033/
JSON: https://nsnexplorer.com/api/nsn/4820-01-423-2033.json