The Valve,check, cataloged under National Stock Number 4820-00-817-8402, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-817-8402 |
| Primary Part Number | 2JC2187H02 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Valve Operation Method | AUTOMATIC |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Thread Quantity Per Inch | 20 SECOND END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Seat Angle | 37.0 DEGREES FIRST END |
| Mounting Position | HORIZONTAL |
| Thread Quantity Per Inch | 24 FIRST END |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | UNF SECOND END |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Thread Class | 3A FIRST END A |
| Thread Direction | RIGHT-HAND SECOND END |
| Material | ALUMINUM ALLOY BODY |
| Style Designator | STRAIGHT THRU |
| Flow Control Device | POPPET |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.187 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Connection Style | FLARED (TUBE) FIRST END |
| Thread Class | 3B SECOND END |
| Thread Series Designator | UNF FIRST END |
| Material | ALUMINUM ALLOY SEAT |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Disk Loading Method | SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2JC2187H02 | Westinghouse Electric Corp (USA) |
| P532 | Ausco Inc (USA) |
| 2JC2187H02 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 5-157-9 | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA) |
NSN 4820-00-817-8402 is a Valve,check, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-817-8402 has 4 cross-referenced part numbers: 2JC2187H02 (Westinghouse Electric Corp), P532 (Ausco Inc), 2JC2187H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 5-157-9 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).
There are 7 known substitutes for 4820-00-817-8402: 4330-00-191-0359, 2930-00-233-8485, 5895-00-356-3513 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2JC2187H02: Valve Operation Method: AUTOMATIC; Nominal Thread Size: 0.375 INCHES FIRST END IN; Thread Quantity Per Inch: 20 SECOND END; Connection Style: GASKET SEAL (BOSS) SECOND END. 25 total characteristics are documented in the Federal Logistics Information System.