The Valve,check, cataloged under National Stock Number 4820-01-326-9031, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-326-9031 |
| Primary Part Number | 325018-3 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Connection Type | UNTHREADED INTERNAL PIPE THIRD END |
| Flow Control Device | DISK |
| Opening Pressure Setting | 12.0 POUNDS PER SQUARE INCH LBS |
| Operating Pressure | 113.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | TEE |
| Material | STEEL BODY |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | UNTHREADED EXTERNAL PIPE SECOND END |
| Connection Type | UNTHREADED EXTERNAL PIPE FIRST END |
| Mounting Facility | THREADED FASTENER |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Style | SOCKET (PIPE) THIRD END |
| Mounting Position | HORIZONTAL |
| Maximum Operating Temp | 325.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Pipe Size Accommodated | 0.562 INCHES THIRD END IN |
| Valve Operation Method | AUTOMATIC |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-326-9031 is a Valve,check, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-326-9031 has 2 cross-referenced part numbers: 325018 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 325018-3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
There are 5 known substitutes for 4820-01-326-9031: 5910-00-175-6969, 1035-00-380-6622, 5965-00-679-5626 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 325018-3: Connection Type: UNTHREADED INTERNAL PIPE THIRD END; Flow Control Device: DISK; Opening Pressure Setting: 12.0 POUNDS PER SQUARE INCH LBS; Operating Pressure: 113.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 19 total characteristics are documented in the Federal Logistics Information System.