The Valve,safety Relief, cataloged under National Stock Number 4820-00-142-1382, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-142-1382 |
| Primary Part Number | 402040 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Bolt Circle Nominal Diameter | 2.438 INCHES SECOND END IN |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Flange Face Design | PLAIN SECOND END |
| Nominal Thickness | 0.312 INCHES SECOND END IN |
| Material | COPPER ALLOY BODY |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Adjustable Pressure Range | +20.0 TO 70.0 POUNDS PER SQUARE INCH LBS |
| Bonnet Type | INSIDE SPRING |
| Renewable Seat Ring Type | THREADED |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Disk Loading Method | SPRING |
| Features Provided | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE |
| Material | NICKEL ALLOY SEAT |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Thread Series Designator | NPT FIRST END |
| Valve Operation Method | MANUAL |
| Maximum Operating Temp | 125.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY STEM |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Thread Direction | RIGHT-HAND FIRST END |
| Bonnet Attachment Method | THREADED |
| Nominal Outside Diameter | 3.562 INCHES SECOND END IN |
| Bolt Hole Quantity | 3 SECOND END |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST END |
| First Connection Face to Centerline Distance | 1.500 INCHES IN |
| Flow Control Device | DISK |
| Second Connection Face to Centerline Distance | 1.500 INCHES IN |
| Style Designator | ANGLE FLANGED ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 595-50FS1-2 | Kieley and Mueller Inc Sub of Johnson Controls Inc (USA) |
| 402040 PRIMARY | Naval Ship Systems Command (USA) |
NSN 4820-00-142-1382 is a Valve,safety Relief, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-142-1382 has 2 cross-referenced part numbers: 595-50FS1-2 (Kieley and Mueller Inc Sub of Johnson Controls Inc), 402040 (Naval Ship Systems Command).
There are 3 known substitutes for 4820-00-142-1382: 5307-00-805-9638, 5935-01-005-3579, 5930-01-201-4009. Verify interchangeability with system specifications before substitution.
Key specifications for 402040: Bolt Circle Nominal Diameter: 2.438 INCHES SECOND END IN; Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Flange Face Design: PLAIN SECOND END; Nominal Thickness: 0.312 INCHES SECOND END IN. 30 total characteristics are documented in the Federal Logistics Information System.