The Valve,safety Relief, cataloged under National Stock Number 4820-01-151-2574, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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 | 4820-01-151-2574 |
| Primary Part Number | 2020501641M |
| 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 |
| Flow Control Device | DISK |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| First Connection Face to Centerline Distance | 6.000 INCHES IN |
| Valve Size | 3.000 INCHES IN |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| Flange Shape | ROUND ALL ENDS |
| Adjustable Pressure Range | +156.0 TO 180.0 POUNDS PER SQUARE INCH LBS |
| Flange Face Design | PLAIN ALL ENDS |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Bonnet Attachment Method | BOLTED |
| Material | COPPER ALLOY BODY |
| Style Designator | ANGLE FLANGED ENDS |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | NICKEL ALLOY STEM |
| Nominal Thickness | 1.125 INCHES ALL ENDS IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second Connection Face to Centerline Distance | 6.000 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Nominal Outside Diameter | 8.250 INCHES ALL ENDS IN |
| Bonnet Type | INSIDE SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2020501641M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 2020501641M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20205 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-151-2574 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 4820-01-151-2574 has 3 cross-referenced part numbers: 2020501641M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 2020501641M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20205 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-151-2574: 4310-00-168-8721, 3020-00-221-8777, 5120-00-240-5219 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2020501641M: Flow Control Device: DISK; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; First Connection Face to Centerline Distance: 6.000 INCHES IN; Valve Size: 3.000 INCHES IN. 21 total characteristics are documented in the Federal Logistics Information System.