# NSN 4820-01-339-2121: Valve, Check

NSN 4820-01-339-2121 (also written 4820013392121; NIIN 01-339-2121) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 7 manufacturer part numbers from 6 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4820-01-339-2121 (4820013392121)
- NIIN: 01-339-2121 (013392121)
- Item name: VALVE,CHECK
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 1189.0 |
| ARKN | FLANGE SHAPE | FIRST END ROUND |
| ARKN | FLANGE SHAPE | SECOND END ROUND |
| AWLS | CONNECTION TYPE | FIRST END FLANGE |
| AWLS | CONNECTION TYPE | SECOND END FLANGE |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 90.0 |
| FEAT | SPECIAL FEATURES | INLET FLANGE EQUIVALENT TO GD/FW C7880-200F,CAGEC 81755; OUTLET FLANGE EQUIVALENT TO GD/FW C7880-200M,CAGEC 81755 |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE AIR |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 16VY101001-2 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4201-2 | 1523A | TAT TECHNOLOGIES LTD DIV TAT ISRAEL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4201-2 | S4883 | TAT TECHNOLOGIES LTD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL0625219 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL1655217 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| CYLB51643 | 05624 | GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| VS2300-130 | 96487 | VALCOR ENGINEERING CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-11 | [SPE7MC25V4468](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820013392121) | VALVE, CHECK | TRANSAERO, INC. | $133,269.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820013392121&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820013392121
- 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/4820-01-339-2121/
JSON: https://nsnexplorer.com/api/nsn/4820-01-339-2121.json