# NSN 4820-00-184-9185: Valve, Stop-Check

NSN 4820-00-184-9185 (also written 4820001849185; NIIN 00-184-9185) is a valve, stop-check in Federal Supply Class 4820, Valves, Nonpowered. 11 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-00-184-9185 (4820001849185)
- NIIN: 00-184-9185 (001849185)
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| AWLS | CONNECTION TYPE | ALL ENDS UNTHREADED INTERNAL PIPE |
| ADST | BONNET ATTACHMENT METHOD | THREADED |
| ADSR | BONNET TYPE | INSIDE SCREW |
| MATT | MATERIAL | FLOW CONTROL DEVICE NICKEL ALLOY R-405 |
| AHNC | CONNECTION STYLE | — |
| CBBL | FEATURES PROVIDED | BONNET PACKING |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 200.0 |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | ALL ENDS INCHES 0.750 |
| ADQU | FLOW CONTROL DEVICE | DISK |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-C-390,ALLOY D4 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | STEM MIL SPEC SINGLE MATERIAL RESPONSE -IL-N-894,CLASS B- CANCELED |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE STEAM |
| 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-CID NO. 882037225 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAT MIL SPEC SINGLE MATERIAL RESPONSE -IL-N-894,CLASS B- CANCELED |
| FEAT | SPECIAL FEATURES | VALVE SIZE 0.750 IN. |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FLOW CONTROL DEVICE MIL SPEC SINGLE MATERIAL RESPONSE -IL-N-894,CLASS B- CANCELED |
| MATT | MATERIAL | BODY COPPER ALLOY 922 |
| ADZH | RENEWABLE SEAT RING TYPE | THREADED |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| MATT | MATERIAL | SEAT NICKEL ALLOY R-405 |
| MATT | MATERIAL | STEM NICKEL ALLOY R-405 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 803-4384536 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 803-4384536-42A | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 803-4384536-42AXAF | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 810-1385722 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 810-1385722 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 810-4384536 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 810-4384536 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 810-4384536-42A | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| CS4820-0019EAAA4CDDDCS | 16236 | DLA WEAPONS SUPPORT (COLUMBUS) DBA DLA VENDOR ITEM DRAWING (VID) DIV DOCUMENT STANDARDIZATION DIVISION (VA) | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| DS2078-1CPCSC3- | 63686 | THE WALWORTH COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MILV1843 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-24 | $399.04 | 14 | MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820001849185) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE7M326V4785](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820001849185) | VALVE, STOP-CHECK | MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC | $5,586.56 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820001849185&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820001849185
- 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.

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