# NSN 4820-01-518-8209: Valve, Check

NSN 4820-01-518-8209 (also written 4820015188209; NIIN 01-518-8209) is a valve, check 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: 4820-01-518-8209 (4820015188209)
- NIIN: 01-518-8209 (015188209)
- 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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | ALL ENDS INCHES 0.281 |
| ADQU | FLOW CONTROL DEVICE | PISTON |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED CARTRIDGE |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 3000.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | 0.281-INCH FLOWSERT |
| FEAT | SPECIAL FEATURES | REGULATED FLOW FORWARD; 0.5 GPM; WITH SCREEN |
| MATT | MATERIAL | BODY STEEL COMP 303 |
| MATT | MATERIAL | FLOW CONTROL DEVICE STEEL COMP 416 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY FED SPEC 1ST MATERIAL RESPONSE QQ-S-763C |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FLOW CONTROL DEVICE FED SPEC 2ND MATERIAL RESPONSE QQ-S-763C |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | FED SPEC SINGLE TREATMENT RESPONSE FED-QQ--35 |
| STYL | STYLE DESIGNATOR | — |
| TMQY | FURNISHED ITEMS AND QUANTITY | BRAZING RING 1 AND SPRING 1 AND FILTER SCREEN 1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| FLFA2812350L | 92555 | THE LEE CO DBA THE LEE CO | [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=4820015188209&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015188209
- 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/4820-01-518-8209/
JSON: https://nsnexplorer.com/api/nsn/4820-01-518-8209.json