The Valve,safety Relief, cataloged under National Stock Number 4820-00-163-5176, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-163-5176 |
| Primary Part Number | H3315564 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Bonnet Type | EXPOSED SPRING |
| Flow Control Device | DISK |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT |
| Valve Size | 2.500 INCHES IN |
| Bolt Hole Quantity | 8 FIRST END |
| Bolt Hole Quantity | 8 SECOND END |
| Raised Face Nominal Diameter | 6.188 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 7.500 INCHES FIRST END IN |
| Recess Nominal Diameter | 8.750 INCHES FIRST END IN |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Bolt Hole Nominal Diameter | 0.875 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 1.125 INCHES FIRST END IN |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Recess Nominal Depth | 0.062 INCHES FIRST END IN |
| Nominal Outside Diameter | 10.000 INCHES SECOND END IN |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Nominal Thickness | 1.688 INCHES FIRST END IN |
| Opening Pressure Setting | 1375.0 POUNDS PER SQUARE INCH LBS |
| Raised Face Nominal Height | 0.062 INCHES SECOND END IN |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Face Design | RECESSED STRAIGHT FIRST END |
| Valve Discharge Flow Rate | 65000.0 POUNDS PER HOUR LBS |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | BOLTED |
| Nominal Outside Diameter | 9.625 INCHES FIRST END IN |
| Nominal Thickness | 1.188 INCHES SECOND END IN |
| Bolt Circle Nominal Diameter | 7.875 INCHES SECOND END IN |
| Style Designator | ANGLE FLANGED ENDS |
| Renewable Seat Ring Type | THREADED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| H3315564 | Naval Ship Systems Command (USA) |
| A39347CAP17200 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| A39347 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-00-163-5176 is a Valve,safety Relief, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-163-5176 has 3 cross-referenced part numbers: H3315564 (Naval Ship Systems Command), A39347CAP17200 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A39347 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 5 known substitutes for 4820-00-163-5176: 4820-00-163-5173, 4820-00-909-0470, 4820-01-046-4700 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for H3315564: Bonnet Type: EXPOSED SPRING; Flow Control Device: DISK; Features Provided: PRESSURE TIGHT OUTLET SIDE; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT. 30 total characteristics are documented in the Federal Logistics Information System.