# NSN 4820-01-423-8020: Valve, Safety Relief

NSN 4820-01-423-8020 (also written 4820014238020; NIIN 01-423-8020) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4820-01-423-8020 (4820014238020)
- NIIN: 01-423-8020 (014238020)
- 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 L: annual buy value is below the screening threshold. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADSU | DISK LOADING METHOD | SPRING |
| AGAV | END ITEM IDENTIFICATION | SHIPBOARD MATERIEL H |
| FEAT | SPECIAL FEATURES | USED ON LUBRICATING OIL PUMP AND DELIVERY HOUSING |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE OIL, LUBRICATING, DIESTER BASE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 4138A033 | 13446 | PERKINS ENGINES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-09 | $219.00 | 2 | SOUTHERN AUTOMOTIVE WHOLESALERS, INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014238020) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-09 | [SPE7M227V0168](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014238020) | VALVE, SAFETY RELIEF | SOUTHERN AUTOMOTIVE WHOLESALERS, INC | $438.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820014238020&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014238020
- 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/4820-01-423-8020/
JSON: https://nsnexplorer.com/api/nsn/4820-01-423-8020.json