PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A39347 M0DValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-163-5173 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-163-5173 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-163-5173. Primary manufacturer part number: A39347 M0D.
Features
  • Valve,safety Relief — FSC 4820
  • Renewable Seat Ring Type: THREADED
  • Disk Loading Method: SPRING
  • Bolt Hole Nominal Diameter: 1.125 INCHES FIRST END IN
  • Opening Pressure Setting: 1400.0 POUNDS PER SQUARE INCH LBS
  • Valve Size: 2.500 INCHES IN
  • Raised Face Nominal Height: 0.062 INCHES SECOND END IN
  • Flange Shape: ROUND WITH HOLES SECOND END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-163-5173, 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 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.

Technical Specifications
ParameterValue
NSN4820-00-163-5173
Primary Part NumberA39347 M0D
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Renewable Seat Ring TypeTHREADED
Disk Loading MethodSPRING
Bolt Hole Nominal Diameter1.125 INCHES FIRST END IN
Opening Pressure Setting1400.0 POUNDS PER SQUARE INCH LBS
Valve Size2.500 INCHES IN
Raised Face Nominal Height0.062 INCHES SECOND END IN
Flange ShapeROUND WITH HOLES SECOND END
Flange Face DesignRAISED STRAIGHT SECOND END
Nominal Outside Diameter10.000 INCHES SECOND END IN
Raised Face Nominal Diameter6.188 INCHES SECOND END IN
Recess Nominal Depth0.062 INCHES FIRST END IN
Bolt Hole Quantity8 FIRST END
Valve Operation MethodAUTOMATIC OR MANUAL
Style DesignatorANGLE FLANGED ENDS
Bolt Circle Nominal Diameter7.500 INCHES FIRST END IN
Bolt Hole Nominal Diameter0.875 INCHES SECOND END IN
Flange Face DesignRECESSED STRAIGHT FIRST END
Bolt Hole Quantity8 SECOND END
Nominal Thickness1.188 INCHES SECOND END IN
Nominal Thickness1.688 INCHES FIRST END IN
Features ProvidedPRESSURE TIGHT OUTLET SIDE
Nominal Outside Diameter9.625 INCHES FIRST END IN
Bonnet TypeEXPOSED SPRING
Bolt Circle Nominal Diameter7.875 INCHES SECOND END IN
Flow Control DeviceDISK
Bonnet Attachment MethodBOLTED
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY THE BODY MATERIAL AND VALVE DISCHARGE FLOW RATE REQUIREMENTS
Flange ShapeROUND WITH HOLES FIRST END
Recess Nominal Diameter8.750 INCHES FIRST END IN
Valve Discharge Flow Rate65110.0 POUNDS PER HOUR LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-163-5176 INTERCHANGEABLE
Valve,safety Relief
4820-00-909-0470A39347 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-046-4700028062 INTERCHANGEABLE
Retainer,disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
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
A39347 M0D 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)
H3315564 Naval Ship Systems Command (USA)
Related Parts
4820-00-163-5176INTERCHANGEABLE
VALVE,SAFETY RELIEF
4820-00-909-0470INTERCHANGEABLE
VALVE,SAFETY RELIEF
A39347
4820-01-046-4700INTERCHANGEABLE
RETAINER,DISK,VALVE
028062
4820-01-164-0059INTERCHANGEABLE
STOP,SPRING,LIFT
057776
4730-01-166-2243INTERCHANGEABLE
PLUG,PIPE
068727

Frequently Asked Questions

What is NSN 4820-00-163-5173?

NSN 4820-00-163-5173 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 4820-00-163-5173?

NSN 4820-00-163-5173 has 3 cross-referenced part numbers: A39347 M0D (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A39347 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), H3315564 (Naval Ship Systems Command).

What NSN replaces 4820-00-163-5173?

There are 5 known substitutes for 4820-00-163-5173: 4820-00-163-5176, 4820-00-909-0470, 4820-01-046-4700 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A39347 M0D?

Key specifications for A39347 M0D: Renewable Seat Ring Type: THREADED; Disk Loading Method: SPRING; Bolt Hole Nominal Diameter: 1.125 INCHES FIRST END IN; Opening Pressure Setting: 1400.0 POUNDS PER SQUARE INCH LBS. 30 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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