The Valve,safety Relief, cataloged under National Stock Number 4820-00-163-5168, 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 27 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-163-5168 |
| Primary Part Number | A49149 |
| 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 |
| Bonnet Type | EXPOSED SPRING |
| Bolt Hole Nominal Diameter | 0.875 INCHES FIRST END IN |
| Nominal Outside Diameter | 6.125 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 4.500 INCHES FIRST END IN |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Recess Nominal Depth | 0.062 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.875 INCHES SECOND END IN |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Flow Control Device | DISK |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Valve Size | 1.500 INCHES IN |
| Opening Pressure Setting | 705.0 POUNDS PER SQUARE INCH LBS |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Raised Face Nominal Diameter | 4.125 INCHES SECOND END IN |
| Nominal Outside Diameter | 7.500 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 5.875 INCHES SECOND END IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Bolt Hole Quantity | 8 SECOND END |
| Valve Discharge Flow Rate | 8540.0 POUNDS PER HOUR LBS |
| Disk Loading Method | SPRING |
| Renewable Seat Ring Type | THREADED |
| Raised Face Nominal Height | 0.062 INCHES SECOND END IN |
| Bonnet Attachment Method | BOLTED |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Bolt Hole Quantity | 4 FIRST END |
| Style Designator | ANGLE FLANGED ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A49149 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-00-163-5168 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 4820-00-163-5168 has 1 cross-referenced part number: A49149 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 3 known substitutes for 4820-00-163-5168: 3030-00-122-0695, 4820-00-163-5159, 4820-00-163-5170. Verify interchangeability with system specifications before substitution.
Key specifications for A49149: Bonnet Type: EXPOSED SPRING; Bolt Hole Nominal Diameter: 0.875 INCHES FIRST END IN; Nominal Outside Diameter: 6.125 INCHES FIRST END IN; Bolt Circle Nominal Diameter: 4.500 INCHES FIRST END IN. 27 total characteristics are documented in the Federal Logistics Information System.