# NSN 4820-01-518-1257: Valve, Safety Relief

NSN 4820-01-518-1257 (also written 4820015181257; NIIN 01-518-1257) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4820-01-518-1257 (4820015181257)
- NIIN: 01-518-1257 (015181257)
- 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 |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | CONTROL PANEL ASSY;NITROGEN SERVICING UNIT (P/N 1317AS100-2) |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | (INAVY)VALVE, PRESS LIMIT, ACFT |
| CRTL | CRITICALITY CODE JUSTIFICATION | AGAV |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 64304 | 13669 | TESCOM CORP DBA TESCOM DIV TESCOM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 64304 | 1RZM1 | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7MC-27-T-1582 | 39 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820015181257&category=nsn) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-11-04 | $630.43 | 29 | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015181257) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-04 | [SPE7M127V1345](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015181257) | VALVE, SAFETY RELIEF | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS | $18,282.47 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820015181257&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015181257
- 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/4820-01-518-1257/
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