The Valve,safety Relief, cataloged under National Stock Number 4820-01-393-5323, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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 | 4820-01-393-5323 |
| Primary Part Number | 20221F01E0020 |
| 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 |
| Material | NICKEL ALLOY STEM |
| Disk Loading Method | SPRING |
| Adjustable Pressure Range | +20.0 TO 24.0 POUNDS PER SQUARE INCH LBS |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Style Designator | ANGLE FLANGED ENDS |
| Bolt Circle Nominal Diameter | 2.438 INCHES ALL ENDS IN |
| Valve Size | 0.500 INCHES IN |
| Material | COPPER ALLOY 922 BODY |
| Flow Control Device | DISK |
| Nominal Thickness | 0.375 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 3 ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Second Connection Face to Centerline Distance | 3.000 INCHES IN |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS IN |
| Nominal Outside Diameter | 3.562 INCHES ALL ENDS IN |
| First Connection Face to Centerline Distance | 3.000 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20221F1E0020 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20221 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 1741T 1/2IN. 20T24PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20221DS41M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 1741T 1/2IN. 20T24PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20221F01E0020 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-393-5323 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 4820-01-393-5323 has 6 cross-referenced part numbers: 20221F1E0020 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20221 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 1741T 1/2IN. 20T24PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20221DS41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 1741T 1/2IN. 20T24PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 1 more.
There are 12 known substitutes for 4820-01-393-5323: 3110-00-100-6175, 5915-00-147-7738, 2910-00-148-7495 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20221F01E0020: Material: NICKEL ALLOY STEM; Disk Loading Method: SPRING; Adjustable Pressure Range: +20.0 TO 24.0 POUNDS PER SQUARE INCH LBS; Material: NICKEL ALLOY FLOW CONTROL DEVICE. 20 total characteristics are documented in the Federal Logistics Information System.