# NSN 4820-00-188-8262: Valve, Stop-Check

NSN 4820-00-188-8262 (also written 4820001888262; NIIN 00-188-8262) is a valve, stop-check in Federal Supply Class 4820, Valves, Nonpowered. 9 manufacturer part numbers from 5 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4820-00-188-8262 (4820001888262)
- NIIN: 00-188-8262 (001888262)
- Item name: VALVE,STOP-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 G: the government has a complete data package and the rights to use it. (observed 2026-10-23)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| AECS | BOLT HOLE QUANTITY | 6 |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | ALL ENDS INCHES 0.562 |
| MATT | MATERIAL | BODY COPPER ALLOY 922 |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND WITH HOLES |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 6.125 |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 425.0 |
| ADSR | BONNET TYPE | OUTSIDE SCREW-YOKE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288,CO- B |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | STEM FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288, CO- B |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE WATER-OIL-GAS |
| MATT | MATERIAL | SEAT NICKEL ALLOY |
| MATT | MATERIAL | STEM NICKEL ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-C-390,ALLOY D4 |
| CWCF | FACE TO FACE DISTANCE | INCHES 9.000 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 0.500 |
| FEAT | SPECIAL FEATURES | VALVE SIZE 2.500 IN. |
| STYL | STYLE DESIGNATOR | — |
| TEST | TEST DATA DOCUMENT | SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). 03950-CID882032969 AND DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) 80064-5000-S4824-C1385541 |
| CCFG | VALVE SIZE | INCHES 2.500 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | ALL ENDS INCHES 5.000 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS PLAIN |
| ADST | BONNET ATTACHMENT METHOD | BOLTED |
| ADZH | RENEWABLE SEAT RING TYPE | THREADED |
| MATT | MATERIAL | FLOW CONTROL DEVICE NICKEL ALLOY |
| ADQU | FLOW CONTROL DEVICE | DISK |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 100.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1022-006H-2.50IN CDS1022006K0001 | 76364 | MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 388F6024H | 63686 | THE WALWORTH COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4820PL1341472 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 728287 | 63686 | THE WALWORTH COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 803-1385541 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 803-1385541-023 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| CD-54791 | 90664 | WALWORTH CO MARINE DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| CD-54791 ITEM 10 | 90664 | WALWORTH CO MARINE DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| S4824-1385541 2 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [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=4820001888262&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820001888262
- 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/4820-00-188-8262/
JSON: https://nsnexplorer.com/api/nsn/4820-00-188-8262.json