The Valve,safety Relief, cataloged under National Stock Number 4820-01-442-8259, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-442-8259 |
| Primary Part Number | 2038101E0005 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Second Connection Face to Centerline Distance | 3.250 INCHES IN |
| Nominal Outside Diameter | 3.500 INCHES ALL ENDS IN |
| Bolt Hole Nominal Diameter | 0.625 INCHES ALL ENDS IN |
| Operating Pressure | 185.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Bolt Circle Nominal Diameter | 2.375 INCHES ALL ENDS IN |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Operating Pressure | 285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Material | STEEL CORROSION RESISTING STEM |
| Material | STEEL CORROSION RESISTING SEAT |
| First Connection Face to Centerline Distance | 3.250 INCHES IN |
| Material | STEEL BODY |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Maximum Operating Temp | 100.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Connection Type | FLANGE ALL ENDS |
| Bolt Hole Quantity | 4 ALL ENDS |
| Maximum Operating Temp | 45.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Valve Size | 0.500 INCHES IN |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | BOLTED |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Flow Control Device | DISK |
| Opening Pressure Setting | 5.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thickness | 0.438 INCHES ALL ENDS IN |
| Raised Face Nominal Diameter | 1.375 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2038101E0005 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20381 ASSY 2038101E0005 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 2038101E0005 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20381 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20381 ASSY 2038101E0005 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-442-8259 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-442-8259 has 5 cross-referenced part numbers: 2038101E0005 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20381 ASSY 2038101E0005 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 2038101E0005 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20381 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20381 ASSY 2038101E0005 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 12 known substitutes for 4820-01-442-8259: 5325-00-281-6506, 3820-00-406-6634, 5330-00-505-6186 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2038101E0005: Second Connection Face to Centerline Distance: 3.250 INCHES IN; Nominal Outside Diameter: 3.500 INCHES ALL ENDS IN; Bolt Hole Nominal Diameter: 0.625 INCHES ALL ENDS IN; Operating Pressure: 185.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS. 30 total characteristics are documented in the Federal Logistics Information System.