# NSN 4820-01-495-3476: Valve, Check

NSN 4820-01-495-3476 (also written 4820014953476; NIIN 01-495-3476) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-495-3476 (4820014953476)
- NIIN: 01-495-3476 (014953476)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-20)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | A3B |
| AAJF | THREAD DIRECTION | ALL ENDS RIGHT-HAND |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED INTERNAL PIPE |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CQJX | NOMINAL THREAD SIZE | ALL ENDS INCHES 0.562 |
| MATT | MATERIAL | PACKING RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| MATT | MATERIAL | OVERALL STEEL |
| THSD | THREAD SERIES DESIGNATOR | ALL ENDS UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1366AS1146 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SPC2-10-P-6T-25 | 45X75 | DANFOSS POWER SOLUTIONS II, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-16 | [SPE7MC26P3600](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014953476) | VALVE, CHECK | ROBECK FLUID POWER CO. DBA ROBECK FLUID POWER CO | $3,876.12 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820014953476&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820014953476
- 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/4820-01-495-3476/
JSON: https://nsnexplorer.com/api/nsn/4820-01-495-3476.json