The Valve,safety Relief, cataloged under National Stock Number 4820-01-086-2834, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 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 | 4820-01-086-2834 |
| Primary Part Number | 20031A01S0051 |
| 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 | COPPER ALLOY SEAT |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Material | COPPER ALLOY STEM |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE |
| Material Document and Classification | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Furnished Items and Quantity | 2 BRAZING RING |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Flow Control Device | DISK |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Bonnet Attachment Method | BOLTED |
| Nominal Pipe Size Accommodated | 0.750 INCHES ALL ENDS IN |
| Adjustable Pressure Range | +51.0 TO 70.0 POUNDS PER SQUARE INCH LBS |
| Disk Loading Method | SPRING |
| Bonnet Type | INSIDE SPRING |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20031-3-4X3-4 51T70PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20031G91M | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20031 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20031-3-4X3-4 51T70PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20031A01S0051 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20031G91M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20031 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-086-2834 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 4820-01-086-2834 has 7 cross-referenced part numbers: 20031-3-4X3-4 51T70PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20031G91M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20031 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20031-3-4X3-4 51T70PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20031A01S0051 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 2 more.
There are 12 known substitutes for 4820-01-086-2834: 5940-00-144-2934, 3110-00-144-8900, 5133-00-189-9321 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20031A01S0051: Material: COPPER ALLOY SEAT; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM; Material: COPPER ALLOY STEM. 20 total characteristics are documented in the Federal Logistics Information System.