The Valve,safety Relief, cataloged under National Stock Number 4820-01-050-7156, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-050-7156 |
| Primary Part Number | 20235A51M |
| 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 |
| Valve Operation Method | AUTOMATIC |
| Nominal Pipe Size Accommodated | 0.250 INCHES ALL ENDS IN |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Disk Loading Method | SPRING |
| Material Document and Classification | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Adjustable Pressure Range | +501.0 TO 600.0 POUNDS PER SQUARE INCH LBS |
| Material | COPPER ALLOY BODY |
| Connection Style | GASKET SEAL (PIPE) ALL ENDS |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Style Designator | ANGLE |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material Document and Classification | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material | NICKEL ALLOY SEAT |
| Flow Control Device | DISK |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20235A51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20235 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20235A51M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20235Z51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-050-7156 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 4820-01-050-7156 has 4 cross-referenced part numbers: 20235A51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20235 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20235A51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20235Z51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-050-7156: 5330-00-182-3482, 5950-00-336-2979, 5305-00-468-0008 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20235A51M: Valve Operation Method: AUTOMATIC; Nominal Pipe Size Accommodated: 0.250 INCHES ALL ENDS IN; Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY; Disk Loading Method: SPRING. 16 total characteristics are documented in the Federal Logistics Information System.