# NSN 4820-01-652-1599: Valve, Safety Relief

NSN 4820-01-652-1599 (also written 4820016521599; NIIN 01-652-1599) 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 Sep 2026.

## Identification

- NSN: 4820-01-652-1599 (4820016521599)
- NIIN: 01-652-1599 (016521599)
- 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 |
| --- | --- | --- |
| ADQU | FLOW CONTROL DEVICE | PISTON |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 180.0 |
| AEQJ | MINIMUM OPERATING TEMP | FAHRENHEIT 33.0 |
| AKGG | NOMINAL LENGTH | ALL ENDS MILLIMETERS 150.9 |
| AQLR | VALVE OPERATION METHOD | AIR |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 150.0 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS MILLIMETERS 28.5 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | ARRESTOR, HAMMER, WATER |
| MATT | MATERIAL | BODY COPPER |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE WATER, FRESH |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| LF15M2-A | 79227 | WATTS REGULATOR COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-24 | $39.76 | 8 | NOLAND COMPANY | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820016521599) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE7MC26V4420](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820016521599) | VALVE, SAFETY RELIEF | — | $318.08 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820016521599&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820016521599
- 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/4820-01-652-1599/
JSON: https://nsnexplorer.com/api/nsn/4820-01-652-1599.json