# NSN 4820-01-735-7267: Head, Safety, Pressure Relief

NSN 4820-01-735-7267 (also written 4820017357267; NIIN 01-735-7267) is a head, safety, pressure relief in Federal Supply Class 4820, Valves, Nonpowered. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-735-7267 (4820017357267)
- NIIN: 01-735-7267 (017357267)
- Item name: HEAD,SAFETY,PRESSURE 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 Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | FORWARD ACTING RUPTURE DISK |
| CSWK | BURST PRESSURE | PRESSURE POUNDS PER SQUARE INCH GAGE 50.0 |
| AGAV | END ITEM IDENTIFICATION | MARINEPAK HFC236FA |
| CYNP | BURST TEMPERATURE | FAHRENHEIT 72.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| NAVSEA50PSIGRUPTURE | 32874 | BS&B SAFETY SYSTEMS LLC | [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=4820017357267&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820017357267
- 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/4820-01-735-7267/
JSON: https://nsnexplorer.com/api/nsn/4820-01-735-7267.json