# NSN 4820-01-728-7589: Retainer, Disk, Valve

NSN 4820-01-728-7589 (also written 4820017287589; NIIN 01-728-7589) is a retainer, disk, valve 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: 4820-01-728-7589 (4820017287589)
- NIIN: 01-728-7589 (017287589)
- Item name: RETAINER,DISK,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 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 |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | SWING CHECK VALVE |
| CXBX | VALVE SIZE FOR WHICH DESIGNED | INCHES 2.500 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | DISC NUT |
| MATT | MATERIAL | COPPER ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NATIONAL SPEC SINGLE MATERIAL RESPONSE AST- B371 |
| CYDY | VALVE MODEL NUMBER FOR WHICH DESIGNED | F938-31-2 1/2 |
| CYDX | VALVE DESIGN CONTROL ACTIVITY | 12168 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| T118441 PP | 12168 | NIBCO INC | [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=4820017287589&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820017287589
- 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/4820-01-728-7589/
JSON: https://nsnexplorer.com/api/nsn/4820-01-728-7589.json