The Valve,check, cataloged under National Stock Number 4820-01-422-9576, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Admiral Valve Llc Dba Cpv Manufacturing. Government technical data includes 17 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-422-9576 |
| Primary Part Number | 680-8 PL140 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Admiral Valve Llc Dba Cpv Manufacturing |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Thread Series Designator | UN ALL ENDS |
| Material | COPPER ALLOY BODY |
| Mounting Position | HORIZONTAL |
| Maximum Operating Temp | 225.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Disk Loading Method | SPRING |
| Minimum Operating Temp | -20.0 FAHRENHEIT DEGF |
| Thread Class | 2A ALL ENDS A |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 3.750 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 680-8 PL140 PRIMARY | Admiral Valve Llc Dba Cpv Manufacturing (USA) |
| 680-8 | Admiral Valve Llc Dba Cpv Manufacturing (USA) |
NSN 4820-01-422-9576 is a Valve,check, manufactured by Admiral Valve Llc Dba Cpv Manufacturing, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-422-9576 has 2 cross-referenced part numbers: 680-8 PL140 (Admiral Valve Llc Dba Cpv Manufacturing), 680-8 (Admiral Valve Llc Dba Cpv Manufacturing).
There are 10 known substitutes for 4820-01-422-9576: 5305-00-052-7450, 5935-00-149-3088, 3110-00-155-7438 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 680-8 PL140: Connection Style: PLAIN (TUBE) ALL ENDS; Thread Series Designator: UN ALL ENDS; Material: COPPER ALLOY BODY; Mounting Position: HORIZONTAL. 19 total characteristics are documented in the Federal Logistics Information System.