The Valve,safety Relief, cataloged under National Stock Number 4820-01-363-2100, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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 | 4820-01-363-2100 |
| Primary Part Number | 20318 ASSY 20318 |
| 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 | NICKEL ALLOY STEM |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Bolt Hole Quantity | 6 ALL ENDS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Maximum Operating Temp | 425.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Valve Size | 1.500 INCHES IN |
| Connection Type | FLANGE ALL ENDS |
| Material | NICKEL ALLOY SEAT |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Maximum Operating Temp | 150.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS IN |
| Bolt Circle Nominal Diameter | 3.938 INCHES ALL ENDS IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Flange Face Design | PLAIN ALL ENDS |
| Nominal Outside Diameter | 5.062 INCHES ALL ENDS IN |
| Nominal Thickness | 0.812 INCHES ALL ENDS IN |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Style Designator | ANGLE FLANGED ENDS |
| First Connection Face to Centerline Distance | 4.750 INCHES IN |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Second Connection Face to Centerline Distance | 4.750 INCHES IN |
| Material | COPPER ALLOY BODY |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20318QS41M | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20318 ASSY 20318 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20318 ASSY 20318QS41M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20318 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20318QS41M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-363-2100 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 4820-01-363-2100 has 5 cross-referenced part numbers: 20318QS41M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20318 ASSY 20318 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20318 ASSY 20318QS41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20318 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20318QS41M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-363-2100: 4820-00-038-7018, 3110-00-156-1909, 3010-00-167-9319 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20318 ASSY 20318: Material: NICKEL ALLOY STEM; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Bolt Hole Quantity: 6 ALL ENDS; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE. 24 total characteristics are documented in the Federal Logistics Information System.