The Valve,safety Relief, cataloged under National Stock Number 4820-01-052-2450, 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 | 4820-01-052-2450 |
| Primary Part Number | 2027401S0181 |
| 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 |
| Flow Control Device | DISK |
| Style Designator | ANGLE |
| Furnished Items and Quantity | 1 PLUGGED DRAIN |
| Operating Pressure | 210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | COPPER ALLOY BODY |
| Disk Loading Method | SPRING |
| Nominal Outside Diameter Tube Accommodated | 0.313 INCHES ALL ENDS IN |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Material | NICKEL ALLOY SEAT |
| Adjustable Pressure Range | +181.0 TO 210.0 POUNDS PER SQUARE INCH LBS |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| 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-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Material | NICKEL ALLOY STEM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20274S51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20274S51M | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 2027401S0181 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20274 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-052-2450 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 4820-01-052-2450 has 4 cross-referenced part numbers: 20274S51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20274S51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 2027401S0181 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20274 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-052-2450: 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 2027401S0181: Flow Control Device: DISK; Style Designator: ANGLE; Furnished Items and Quantity: 1 PLUGGED DRAIN; Operating Pressure: 210.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 19 total characteristics are documented in the Federal Logistics Information System.