The Valve,safety Relief, cataloged under National Stock Number 4820-01-052-2449, 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 18 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 | 4820-01-052-2449 |
| Primary Part Number | 2027401S0030 |
| 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 |
| Connection Style | SOCKET WITH BRAZING RING (TUBE) ALL ENDS |
| 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 FLOW CONTROL DEVICE |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Adjustable Pressure Range | +30.0 TO 34.0 POUNDS PER SQUARE INCH LBS |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Nominal Outside Diameter Tube Accommodated | 0.313 INCHES ALL ENDS IN |
| Operating Pressure | 34.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Furnished Items and Quantity | 1 PLUGGED DRAIN |
| Material | NICKEL ALLOY STEM |
| Material | COPPER ALLOY BODY |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Style Designator | ANGLE |
| Flow Control Device | DISK |
| Material | NICKEL ALLOY SEAT |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2027401S0030 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20274F51M | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20274 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20274F51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-052-2449 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 4820-01-052-2449 has 4 cross-referenced part numbers: 2027401S0030 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20274F51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20274 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20274F51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-052-2449: 5940-00-502-2949, 3110-00-554-3197, 6685-00-810-6047 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2027401S0030: Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS; 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 FLOW CONTROL DEVICE; Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY. 19 total characteristics are documented in the Federal Logistics Information System.