The Valve,safety Relief, cataloged under National Stock Number 4820-01-265-0411, 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 16 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-265-0411 |
| Primary Part Number | 20154C01S1661 |
| 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 |
| Media for Which Designed | GAS, INERT SINGLE RESPONSE |
| Material | NICKEL ALLOY SEAT |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Flow Control Device | DISK |
| Material | COPPER ALLOY BODY |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Style Designator | ANGLE |
| Bonnet Type | INSIDE SCREW |
| Adjustable Pressure Range | +1661.0 TO 2110.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Bonnet Attachment Method | BOLTED |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Operating Pressure | 3450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | NICKEL ALLOY STEM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20154C01S1661 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20154 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20154F11M | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20154F11M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-265-0411 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 4820-01-265-0411 has 4 cross-referenced part numbers: 20154C01S1661 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20154 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20154F11M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20154F11M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 9 known substitutes for 4820-01-265-0411: 5950-00-135-0781, 4730-00-200-3412, 5133-00-228-1398 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20154C01S1661: Media for Which Designed: GAS, INERT SINGLE RESPONSE; Material: NICKEL ALLOY SEAT; Connection Style: SOCKET WITH BRAZING RING ALL ENDS; Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF. 16 total characteristics are documented in the Federal Logistics Information System.