The Valve,safety Relief, cataloged under National Stock Number 4820-01-221-1570, 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 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-221-1570 |
| Primary Part Number | 20007G41M |
| 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 |
| Bonnet Attachment Method | BOLTED |
| Material | COPPER ALLOY STEM |
| Nominal Thickness | 0.562 INCHES ALL ENDS IN |
| Valve Size | 5.000 INCHES IN |
| Bolt Circle Nominal Diameter | 4.500 INCHES ALL ENDS IN |
| Mounting Facility | THREADED FASTENER |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Nominal Outside Diameter | 9.062 INCHES ALL ENDS IN |
| Flange Face Design | PLAIN ALL ENDS |
| Bolt Hole Nominal Diameter | 0.812 INCHES ALL ENDS IN |
| Valve Operation Method | AUTOMATIC |
| Material | COPPER ALLOY SEAT |
| Style Designator | ANGLE FLANGED ENDS |
| First Connection Face to Centerline Distance | 6.500 INCHES IN |
| Adjustable Pressure Range | +1.0 TO 15.0 POUNDS PER SQUARE INCH LBS |
| Material | COPPER ALLOY BODY |
| Bolt Hole Quantity | 2 ALL ENDS |
| Second Connection Face to Centerline Distance | 6.500 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Bonnet Type | INSIDE SPRING |
| Disk Loading Method | SPRING |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20007G41M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 1241 5T15PSI 5.00IPS FLGE BRZ | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9249 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20007G41M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 1241 5T15PSI 5.00IPS FLGE BRZ PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-221-1570 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 4820-01-221-1570 has 5 cross-referenced part numbers: 20007G41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 1241 5T15PSI 5.00IPS FLGE BRZ (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 9249 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20007G41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 1241 5T15PSI 5.00IPS FLGE BRZ (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 4 known substitutes for 4820-01-221-1570: 5915-00-503-1881, 6625-00-504-1486, 5820-01-165-4419 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20007G41M: Bonnet Attachment Method: BOLTED; Material: COPPER ALLOY STEM; Nominal Thickness: 0.562 INCHES ALL ENDS IN; Valve Size: 5.000 INCHES IN. 22 total characteristics are documented in the Federal Logistics Information System.