The Valve,safety Relief, cataloged under National Stock Number 4820-01-377-6861, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-377-6861 |
| Primary Part Number | 20291A0350065 |
| 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 |
| Valve Size | 0.500 INCHES IN |
| Nominal Outside Diameter | 3.500 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Bolt Circle Nominal Diameter | 2.375 INCHES ALL ENDS IN |
| Operating Pressure | 275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bolt Hole Nominal Diameter | 0.625 INCHES ALL ENDS IN |
| First Connection Face to Centerline Distance | 3.250 INCHES IN |
| Material | STEEL COMP 304 STEM |
| Second Connection Face to Centerline Distance | 3.250 INCHES IN |
| Nominal Thickness | 0.438 INCHES ALL ENDS IN |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Style Designator | ANGLE FLANGED ENDS |
| Raised Face Nominal Diameter | 1.375 INCHES ALL ENDS IN |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Adjustable Pressure Range | +63.0 TO 70.0 POUNDS PER SQUARE INCH LBS |
| Material | STEEL UNS J03002 BODY |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Material | STEEL COMP 304 FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| DX62FF-05-1/2IN | Dante Valve Company (USA) |
| 20291A0350065 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20291 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20291M51SS CDS-1 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| CKCNN05CCC-A008 | Danco Valve Company (USA) |
| 20291M51SS CDS-16329 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20291M51SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| DX62FF-05-1/2IN | Danco Valve Company (USA) |
| CKCNN05CCC-A008 | Dante Valve Company (USA) |
| 20291M51SS | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20291A0350065 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-377-6861 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 4820-01-377-6861 has 11 cross-referenced part numbers: DX62FF-05-1/2IN (Dante Valve Company), 20291A0350065 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20291 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20291M51SS CDS-1 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), CKCNN05CCC-A008 (Danco Valve Company) and 6 more.
There are 9 known substitutes for 4820-01-377-6861: 4820-00-308-9851, 2815-01-074-8273, 5320-01-110-7955 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20291A0350065: Flow Control Device: DISK; Valve Size: 0.500 INCHES IN; Nominal Outside Diameter: 3.500 INCHES ALL ENDS IN; Bolt Hole Quantity: 4 ALL ENDS. 23 total characteristics are documented in the Federal Logistics Information System.