# NSN 4820-01-248-6253: Valve, Safety Relief

NSN 4820-01-248-6253 (also written 4820012486253; NIIN 01-248-6253) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4820-01-248-6253 (4820012486253)
- NIIN: 01-248-6253 (012486253)
- 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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | ALL ENDS INCHES 0.500 |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADST | BONNET ATTACHMENT METHOD | THREADED |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | ALL ENDS UNTHREADED INTERNAL PIPE |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0 |
| CSDC | OPENING PRESSURE SETTING | POUNDS PER SQUARE INCH 3200.0 |
| MATT | MATERIAL | FLOW CONTROL DEVICE PLASTIC POLYAMIDE NYLON |
| MATT | MATERIAL | STEM STEEL CORROSION RESISTING |
| MATT | MATERIAL | BODY STEEL CORROSION RESISTING |
| MATT | MATERIAL | PACKING RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 7-050566 | 03024 | SENIOR OPERATIONS LLC DIV SENIOR AEROSPACE KETEMA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7-050566-103 | 03024 | SENIOR OPERATIONS LLC DIV SENIOR AEROSPACE KETEMA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7-050566-103 | 07107 | TECHNETICS GROUP LLC DBA TECHNETICS GROUP BURBANK | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7-050566-103 | 12193 | TECHNETICS GROUP LLC DBA TECHNETICS GROUP DELAND DIV TECHNETICS GROUP DELAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | $28,695.64 | 1 | TRANSAERO, INC. | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012486253) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-06 | [SPE7MC27V0081](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012486253) | VALVE, SAFETY RELIEF | TRANSAERO, INC. | $28,695.64 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820012486253&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012486253
- 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/4820-01-248-6253/
JSON: https://nsnexplorer.com/api/nsn/4820-01-248-6253.json