The Valve,safety Relief, cataloged under National Stock Number 4820-00-164-4164, 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 28 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 | 4820-00-164-4164 |
| Primary Part Number | A49151 |
| 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 |
| Valve Discharge Flow Rate | 44000.0 POUNDS PER HOUR LBS |
| Nominal Outside Diameter | 9.000 INCHES SECOND END IN |
| Recess Nominal Depth | 0.062 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.875 INCHES SECOND END IN |
| Raised Face Nominal Diameter | 5.500 INCHES SECOND END IN |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Bolt Circle Nominal Diameter | 5.875 INCHES FIRST END IN |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Opening Pressure Setting | 730.0 POUNDS PER SQUARE INCH LBS |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Raised Face Nominal Height | 0.062 INCHES SECOND END IN |
| Valve Size | 2.500 INCHES IN |
| Nominal Outside Diameter | 7.500 INCHES FIRST END IN |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Recess Nominal Diameter | 6.875 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.875 INCHES FIRST END IN |
| Bolt Hole Quantity | 8 FIRST END |
| Bolt Hole Quantity | 8 SECOND END |
| Flow Control Device | DISK |
| Bonnet Attachment Method | BOLTED |
| Bonnet Type | EXPOSED SPRING |
| Renewable Seat Ring Type | THREADED |
| Disk Loading Method | SPRING |
| Bolt Circle Nominal Diameter | 7.250 INCHES SECOND END IN |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Style Designator | ANGLE FLANGED ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A49151 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-00-164-4164 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 4820-00-164-4164 has 1 cross-referenced part number: A49151 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 3 known substitutes for 4820-00-164-4164: 4820-00-060-8193, 4820-00-163-5166, 4820-00-163-5167. Verify interchangeability with system specifications before substitution.
Key specifications for A49151: Valve Discharge Flow Rate: 44000.0 POUNDS PER HOUR LBS; Nominal Outside Diameter: 9.000 INCHES SECOND END IN; Recess Nominal Depth: 0.062 INCHES FIRST END IN; Bolt Hole Nominal Diameter: 0.875 INCHES SECOND END IN. 28 total characteristics are documented in the Federal Logistics Information System.