# NSN 4820-01-095-4798: Piston, Valve

NSN 4820-01-095-4798 (also written 4820010954798; NIIN 01-095-4798) is a piston, valve in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4820-01-095-4798 (4820010954798)
- NIIN: 01-095-4798 (010954798)
- Item name: PISTON,VALVE
- 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 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHE | OUTSIDE DIAMETER | INCHES NOMINAL 4.375 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 4.218 |
| BTNZ | VALVE TYPE FOR WHICH DESIGNED | PRESSURE REDUCING |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| CYDX | VALVE DESIGN CONTROL ACTIVITY | 03847 |
| FEAT | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL. FEATURES - NHA 1 1/2 IN. WARREN TYPE 436 PRESSURE REDUCING VALVE. |
| MATT | MATERIAL | NICKEL ALLOY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASSN STD 1ST MATERIAL RESPONSE QQ-N-268 CO- D |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 20110233 | 03847 | WARREN CONTROLS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 20110730 | 03847 | WARREN CONTROLS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 30810264 | 03847 | WARREN CONTROLS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 30810264 PIECE 12 | 03847 | WARREN CONTROLS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 30810998 ITEM 132 | 03847 | WARREN CONTROLS, INC. | [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=4820010954798&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820010954798
- 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/4820-01-095-4798/
JSON: https://nsnexplorer.com/api/nsn/4820-01-095-4798.json