# NSN 4820-01-290-4469: Seat, Valve

NSN 4820-01-290-4469 (also written 4820012904469; NIIN 01-290-4469) is a seat, valve in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-290-4469 (4820012904469)
- NIIN: 01-290-4469 (012904469)
- Item name: SEAT,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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABKK | FLANGE DIAMETER | INCHES NOMINAL 5.875 |
| ADAS | BODY INSIDE DIAMETER | INCHES NOMINAL 4.625 |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | INCHES NOMINAL 0.375 |
| AJRM | UNDER FLANGE HEIGHT | INCHES NOMINAL 0.625 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 499505560060449 | 09032 | TATE ANDALE, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 499515510062999 | 09032 | TATE ANDALE, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M44-3-258C SH NO 20 | 1CC97 | HUNTINGTON INGALLS INCORPORATED DIV INGALLS SHIPBUILDING | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| M44-3-258C SH NO 20 | 3B017 | AVONDALE INDUSTRIES INC MODULAR CONSTRUCTION DIV | [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=4820012904469&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820012904469
- 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/4820-01-290-4469/
JSON: https://nsnexplorer.com/api/nsn/4820-01-290-4469.json