PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA31306Valve,safety Relief

Eaton Aerospace, Llc Dba Jackson South · NSN 4820-00-529-4189 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-529-4189 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-529-4189. Primary manufacturer part number: AA31306.
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: STRAIGHT THRU W/OFFSET
  • Nominal Thread Size: 0.562 INCHES FIRST END IN
  • Features Provided: BONNET PACKING
  • Offset Distance: 1.500 INCHES IN
  • Thread Quantity Per Inch: 18 FIRST END
  • Valve Operation Method: AUTOMATIC
  • Operating Pressure: 3850.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Flow Control Device construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-529-4189, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-529-4189
Primary Part NumberAA31306
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusCANCELLED
Style DesignatorSTRAIGHT THRU W/OFFSET
Nominal Thread Size0.562 INCHES FIRST END IN
Features ProvidedBONNET PACKING
Offset Distance1.500 INCHES IN
Thread Quantity Per Inch18 FIRST END
Valve Operation MethodAUTOMATIC
Operating Pressure3850.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Surface TreatmentANODIZE LOCATION NOT OTHERWISE SPECIFIED
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Adjustable Pressure Range+2300.0 TO 3850.0 POUNDS PER SQUARE INCH LBS
Valve Discharge Flow Rate3.5 GALLONS PER MINUTE
Thread Class3B FIRST END
Bonnet Attachment MethodTHREADED
Connection TypeTHREADED INTERNAL BOSS FIRST END
Disk Loading MethodSPRING
Thread DirectionRIGHT-HAND FIRST END
Renewable Seat Ring TypePRESSED-IN
Connection TypeTHREADED INTERNAL BOSS SECOND END
Thread Series DesignatorUNF FIRST END
Flow Control DevicePOPPET
MaterialSTEEL CORROSION RESISTING SEAT
Mounting FacilityTHREADED FASTENER
Bonnet TypeINSIDE SPRING
Connection StyleGASKET SEAL(BOSS) FIRST END
MaterialALUMINUM ALLOY BODY
Maximum Operating Temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4820-00-287-467521106 INTERCHANGEABLE
Valve,safety Relief
Hydro-Aire Aerospace Corp
Cross-Reference Index
Part NumberManufacturer
AA31306 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
AN6279-6CD Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
4820-00-287-4675INTERCHANGEABLE
VALVE,SAFETY RELIEF
21106

Frequently Asked Questions

What is NSN 4820-00-529-4189?

NSN 4820-00-529-4189 is a Valve,safety Relief, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-529-4189?

NSN 4820-00-529-4189 has 2 cross-referenced part numbers: AA31306 (Eaton Aerospace, Llc Dba Jackson South), AN6279-6CD (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 4820-00-529-4189?

There is 1 known substitute for 4820-00-529-4189: 4820-00-287-4675. Verify interchangeability with system specifications before substitution.

What are the specifications of AA31306?

Key specifications for AA31306: Style Designator: STRAIGHT THRU W/OFFSET; Special Features: DESIGNED FOR HYDRAULIC FLUID; Nominal Thread Size: 0.562 INCHES FIRST END IN; Features Provided: BONNET PACKING. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-529-4189 still in active supply?

NSN 4820-00-529-4189 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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