PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A39347Valve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-909-0470 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-909-0470 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-909-0470. Primary manufacturer part number: A39347.
Features
  • Valve,safety Relief — FSC 4820
  • Nominal Outside Diameter: 9.625 INCHES FIRST END IN
  • Nominal Thickness: 1.688 INCHES FIRST END IN
  • Bolt Hole Nominal Diameter: 1.125 INCHES FIRST END IN
  • Raised Face Nominal Diameter: 4.125 INCHES FIRST END IN
  • Flow Control Device: DISK
  • Style Designator: ANGLE
  • Raised Face Nominal Height: 0.250 INCHES FIRST END IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-909-0470, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-909-0470
Primary Part NumberA39347
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Nominal Outside Diameter9.625 INCHES FIRST END IN
Nominal Thickness1.688 INCHES FIRST END IN
Bolt Hole Nominal Diameter1.125 INCHES FIRST END IN
Raised Face Nominal Diameter4.125 INCHES FIRST END IN
Flow Control DeviceDISK
Style DesignatorANGLE
Raised Face Nominal Height0.250 INCHES FIRST END IN
Flange Face DesignRAISED STRAIGHT SECOND END
Flange ShapeROUND WITH HOLES FIRST END
Raised Face Nominal Diameter6.188 INCHES SECOND END IN
Bonnet Attachment MethodBOLTED
Bolt Circle Nominal Diameter7.875 INCHES SECOND END IN
Raised Face Nominal Height0.062 INCHES SECOND END IN
Flange Face DesignRAISED STRAIGHT FIRST END
Nominal Outside Diameter10.000 INCHES SECOND END IN
Bonnet TypeINSIDE SPRING
Connection TypeFLANGE FIRST END
Bolt Circle Nominal Diameter7.500 INCHES FIRST END IN
Adjustable Pressure Range+1420.0 TO 1520.0 POUNDS PER SQUARE INCH LBS
Renewable Seat Ring TypeTHREADED
Bolt Hole Quantity8 FIRST END
Disk Loading MethodSPRING
Valve Operation MethodAUTOMATIC
Bolt Hole Nominal Diameter0.875 INCHES SECOND END IN
Bolt Hole Quantity8 SECOND END
Opening Pressure Setting1470.0 POUNDS PER SQUARE INCH LBS
Nominal Thickness1.250 INCHES SECOND END IN
Flange ShapeROUND WITH HOLES SECOND END
Connection TypeFLANGE SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-00-163-5173 INTERCHANGEABLE
Valve,safety Relief
4820-00-163-5176 INTERCHANGEABLE
Valve,safety Relief
4820-01-164-0059057776 INTERCHANGEABLE
Stop,spring,lift
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4730-01-166-2243068727 INTERCHANGEABLE
Plug,pipe
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
39347M0D5-1420T01520 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A39347 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4820-00-163-5173INTERCHANGEABLE
VALVE,SAFETY RELIEF
4820-00-163-5176INTERCHANGEABLE
VALVE,SAFETY RELIEF
4820-01-164-0059INTERCHANGEABLE
STOP,SPRING,LIFT
057776
4730-01-166-2243INTERCHANGEABLE
PLUG,PIPE
068727

Frequently Asked Questions

What is NSN 4820-00-909-0470?

NSN 4820-00-909-0470 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.

What are the part numbers for NSN 4820-00-909-0470?

NSN 4820-00-909-0470 has 2 cross-referenced part numbers: 39347M0D5-1420T01520 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A39347 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-00-909-0470?

There are 4 known substitutes for 4820-00-909-0470: 4820-00-163-5173, 4820-00-163-5176, 4820-01-164-0059 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A39347?

Key specifications for A39347: Nominal Outside Diameter: 9.625 INCHES FIRST END IN; Nominal Thickness: 1.688 INCHES FIRST END IN; Bolt Hole Nominal Diameter: 1.125 INCHES FIRST END IN; Raised Face Nominal Diameter: 4.125 INCHES FIRST END IN. 29 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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