The Valve,safety Relief, cataloged under National Stock Number 4820-01-406-8829, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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 | 4820-01-406-8829 |
| Primary Part Number | 2021400241M |
| 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 |
| Bolt Circle Nominal Diameter | 6.562 INCHES ALL ENDS IN |
| Second Connection Face to Centerline Distance | 6.500 INCHES IN |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | NICKEL ALLOY STEM |
| Bolt Hole Quantity | 8 ALL ENDS |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Adjustable Pressure Range | +7.0 TO 10.0 POUNDS PER SQUARE INCH LBS |
| Material | NICKEL ALLOY SEAT |
| Valve Operation Method | AUTOMATIC |
| Connection Type | FLANGE ALL ENDS |
| Valve Size | 4.000 INCHES IN |
| First Connection Face to Centerline Distance | 6.500 INCHES IN |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Bonnet Type | INSIDE SPRING |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | INTEGRAL |
| Nominal Thickness | 0.750 INCHES ALL ENDS IN |
| Flange Face Design | PLAIN ALL ENDS |
| Material | COPPER ALLOY BODY |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 7.688 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2021400241M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20214 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 2021400241M 4.0 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 2021400241M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-406-8829 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 4820-01-406-8829 has 4 cross-referenced part numbers: 2021400241M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20214 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 2021400241M 4.0 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 2021400241M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-406-8829: 5910-00-112-7401, 3110-00-156-7572, 2910-00-209-1528 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2021400241M: Bolt Circle Nominal Diameter: 6.562 INCHES ALL ENDS IN; Second Connection Face to Centerline Distance: 6.500 INCHES IN; Material: NICKEL ALLOY FLOW CONTROL DEVICE; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 25 total characteristics are documented in the Federal Logistics Information System.