The Valve,safety Relief, cataloged under National Stock Number 4820-00-163-5178, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-163-5178 |
| Primary Part Number | A47800 |
| 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 |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Flow Control Device | DISK |
| Bolt Circle Nominal Diameter | 7.500 INCHES FIRST END IN |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Bolt Circle Nominal Diameter | 7.875 INCHES SECOND END IN |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Nominal Thickness | 1.688 INCHES FIRST END IN |
| Nominal Outside Diameter | 10.000 INCHES SECOND END IN |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Recess Nominal Depth | 0.062 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.875 INCHES SECOND END IN |
| Bolt Hole Quantity | 8 FIRST END |
| Raised Face Nominal Height | 0.062 INCHES SECOND END IN |
| Recess Nominal Diameter | 8.750 INCHES FIRST END IN |
| Style Designator | ANGLE FLANGED ENDS |
| Valve Size | 2.500 INCHES IN |
| Nominal Thickness | 1.188 INCHES SECOND END IN |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Opening Pressure Setting | 1365.0 POUNDS PER SQUARE INCH LBS |
| Raised Face Nominal Diameter | 6.188 INCHES SECOND END IN |
| Renewable Seat Ring Type | THREADED |
| Valve Discharge Flow Rate | 54900.0 POUNDS PER HOUR LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Nominal Outside Diameter | 9.625 INCHES FIRST END IN |
| Bonnet Type | EXPOSED SPRING |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT |
| Bonnet Attachment Method | BOLTED |
| Disk Loading Method | SPRING |
| Bolt Hole Quantity | 8 SECOND END |
| Bolt Hole Nominal Diameter | 1.125 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A47800 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-00-163-5178 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 4820-00-163-5178 has 1 cross-referenced part number: A47800 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 6 known substitutes for 4820-00-163-5178: 4820-00-135-2317, 4820-00-163-5179, 4820-00-163-5180 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for A47800: Flange Face Design: RECESSED STRAIGHT FIRST END; Flow Control Device: DISK; Bolt Circle Nominal Diameter: 7.500 INCHES FIRST END IN; Flange Shape: ROUND WITH HOLES SECOND END. 30 total characteristics are documented in the Federal Logistics Information System.