# NSN 4820-01-159-8531: Stem, Fluid Valve

NSN 4820-01-159-8531 (also written 4820011598531; NIIN 01-159-8531) is a stem, fluid valve in Federal Supply Class 4820, Valves, Nonpowered. 3 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-159-8531 (4820011598531)
- NIIN: 01-159-8531 (011598531)
- Item name: STEM,FLUID VALVE
- 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 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| BTNZ | VALVE TYPE FOR WHICH DESIGNED | GLOBE |
| CXBX | VALVE SIZE FOR WHICH DESIGNED | INCHES 0.250 AND INCHES 0.750 AND INCHES 1.000 |
| CYCB | STEM ACTUATING END TYPE | THREADED EXTERNALLY |
| MATT | MATERIAL | STEEL CORROSION RESISTING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 3532-028-418 | 57574 | VELAN VALVE CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3532-28-064 | 57574 | VELAN VALVE CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3532-28-64 | 57574 | VELAN VALVE CORP. | [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=4820011598531&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820011598531
- 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/4820-01-159-8531/
JSON: https://nsnexplorer.com/api/nsn/4820-01-159-8531.json