# NSN 4820-01-524-9123: Valve, Stop-Check

NSN 4820-01-524-9123 (also written 4820015249123; NIIN 01-524-9123) is a valve, stop-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: 4820-01-524-9123 (4820015249123)
- NIIN: 01-524-9123 (015249123)
- 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 |
| --- | --- | --- |
| ADQU | FLOW CONTROL DEVICE | DISK |
| CWCR | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | INCHES 4.500 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | ALL ENDS INCHES 5.000 |
| AECS | BOLT HOLE QUANTITY | 6 |
| CCFG | VALVE SIZE | INCHES 2.500 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 6.125 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 0.500 |
| CWCL | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | INCHES 4.500 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | ALL ENDS INCHES 0.562 |
| STYL | STYLE DESIGNATOR | — |
| TMQY | FURNISHED ITEMS AND QUANTITY | HANDWHEEL 1 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS PLAIN |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | ANGLE STOP CHECK VALVE |
| MATT | MATERIAL | STEM NICKEL ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAT ASSN STD SINGLE MATERIAL RESPONSE AST--A494. GR. -30C |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| ADST | BONNET ATTACHMENT METHOD | BOLTED |
| ADSR | BONNET TYPE | OUTSIDE SCREW-YOKE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 803-1385541-024AF | 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=4820015249123&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015249123
- 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/4820-01-524-9123/
JSON: https://nsnexplorer.com/api/nsn/4820-01-524-9123.json