The Valve,check, cataloged under National Stock Number 4820-00-878-4325, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-878-4325 |
| Primary Part Number | 803-1385637-082 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | CANCELLED |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Face to Face Distance | 18.500 INCHES IN |
| Nominal Thickness | 1.312 INCHES ALL ENDS IN |
| Bolt Circle Nominal Diameter | 11.062 INCHES FIRST END IN |
| Flange Face Design | PLAIN ALL ENDS |
| Renewable Seat Ring Type | THREADED |
| Material Document and Classification | QQ-C-390, ALLOY D4D FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 12.375 INCHES ALL ENDS IN |
| Valve Operation Method | AUTOMATIC |
| Connection Type | FLANGE ALL ENDS |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 12.375 INCHES ALL ENDS IN |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Mounting Position | HORIZONTAL |
| Bolt Hole Quantity | 14 FIRST END |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material | NICKEL ALLOY SEAT |
| Bolt Hole Nominal Diameter | 0.688 INCHES FIRST END IN |
| Material | COPPER ALLOY 922 BODY |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flow Control Device | DISK |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 810-1385637-8 | Naval Ship Systems Command (USA) |
| 803-1385637-08 | Naval Sea Systems Command (USA) |
| S4824-1385637 | Naval Ship Systems Command (USA) |
| 803-1385637-082 PRIMARY | Naval Ship Systems Command (USA) |
| 803-1385637-082-8 | Naval Ship Systems Command (USA) |
| 1385637 | Naval Ship Systems Command (USA) |
| 5000-4824-1385637 | Naval Ship Systems Command (USA) |
| 803-1385637-08 | Naval Ship Systems Command (USA) |
| 803-1385637-082AF PRIMARY | Naval Ship Systems Command (USA) |
NSN 4820-00-878-4325 is a Valve,check, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-878-4325 has 9 cross-referenced part numbers: 810-1385637-8 (Naval Ship Systems Command), 803-1385637-08 (Naval Sea Systems Command), S4824-1385637 (Naval Ship Systems Command), 803-1385637-082 (Naval Ship Systems Command), 803-1385637-082-8 (Naval Ship Systems Command) and 4 more.
There are 12 known substitutes for 4820-00-878-4325: 4820-00-058-3509, 4820-00-058-3630, 4820-00-243-6699 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 803-1385637-082: Media for Which Designed: WATER, SALT SINGLE RESPONSE; Face to Face Distance: 18.500 INCHES IN; Nominal Thickness: 1.312 INCHES ALL ENDS IN; Special Features: VALVE SIZE 8 IN. IN. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-878-4325 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.