PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA11236Valve,safety Relief

Eaton Aerospace, Llc Dba Jackson South · NSN 4820-00-540-4108 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-540-4108 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-540-4108. Primary manufacturer part number: AA11236.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Direction: RIGHT-HAND SECOND END
  • Connection Style: GASKET SEAL(BOSS) FIRST END
  • Thread Quantity Per Inch: 18 FIRST END
  • Thread Class: 3B FIRST END
  • Connection Style: GASKET SEAL(BOSS) SECOND END
  • Valve Discharge Flow Rate: 3.5 GALLONS PER MINUTE
  • Thread Series Designator: UNF FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-540-4108, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-540-4108
Primary Part NumberAA11236
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusCANCELLED
Thread DirectionRIGHT-HAND SECOND END
Connection StyleGASKET SEAL(BOSS) FIRST END
Thread Quantity Per Inch18 FIRST END
Thread Class3B FIRST END
Connection StyleGASKET SEAL(BOSS) SECOND END
Valve Discharge Flow Rate3.5 GALLONS PER MINUTE
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.562 INCHES FIRST END IN
Test Data Document81349-MIL-V-5523 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Nondefinitive Spec/std DataI TYPE AND AB CLASS
Operating Pressure2300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorSTRAIGHT THRU
Media for Which DesignedHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
Connection TypeTHREADED INTERNAL BOSS SECOND END
Thread Series DesignatorUNF SECOND END
Connection TypeTHREADED INTERNAL BOSS FIRST END
Adjustable Pressure Range+1000.0 TO 2300.0 POUNDS PER SQUARE INCH LBS
Features ProvidedPRESSURE TIGHT OUTLET SIDE
Thread DirectionRIGHT-HAND FIRST END
Nominal Thread Size0.562 INCHES SECOND END IN
Disk Loading MethodSPRING
Thread Class3B SECOND END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4310-00-140-5437 INTERCHANGEABLE
Vacuum Pump Unit,rotary
5330-00-146-871120373 INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5955-00-219-37511040A INTERCHANGEABLE
Oscillating Group
Industrial Test Equipment Company, Inc. Dba Industrial Test Equipment Co
4820-00-287-2789 INTERCHANGEABLE
Valve,globe
5915-00-562-405820373 INTERCHANGEABLE
Network
Raytheon Company Dba Raytheon
6130-00-635-028520373 INTERCHANGEABLE
Rectifier Set,metallic
Naval Ship Systems Command
4820-00-640-0604 INTERCHANGEABLE
Valve,globe
4820-00-811-4121 INTERCHANGEABLE
Valve,globe
4330-00-983-0998045800-10 INTERCHANGEABLE
Filter Element,fluid
Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in
6930-01-057-19241040A INTERCHANGEABLE
Servo Assembly
Industrial Control Co
Cross-Reference Index
Part NumberManufacturer
AA11236 Eaton Aerospace, Llc Dba Jackson South (USA)
N20373 Hydro-Aire Aerospace Corp (USA)
AN6200-6AB Aeronautical Standards Group Dept of Navy and Air Force (USA)
20373 Hydro-Aire Aerospace Corp (USA)
1040 Hydro-Aire Aerospace Corp (USA)
1040A Hydro-Aire Aerospace Corp (USA)
Related Parts
4310-00-140-5437INTERCHANGEABLE
VACUUM PUMP UNIT,ROTARY
5330-00-146-8711INTERCHANGEABLE
GASKET
20373
5955-00-219-3751INTERCHANGEABLE
OSCILLATING GROUP
1040A
4820-00-287-2789INTERCHANGEABLE
VALVE,GLOBE
5915-00-562-4058INTERCHANGEABLE
NETWORK
20373
6130-00-635-0285INTERCHANGEABLE
RECTIFIER SET,METALLIC
20373
4820-00-640-0604INTERCHANGEABLE
VALVE,GLOBE
4820-00-811-4121INTERCHANGEABLE
VALVE,GLOBE
4330-00-983-0998INTERCHANGEABLE
FILTER ELEMENT,FLUID
045800-10
6930-01-057-1924INTERCHANGEABLE
SERVO ASSEMBLY
1040A
4310-01-145-2866INTERCHANGEABLE
COMPRESSOR,CENTRIFUGAL
1040A
6625-01-146-1554INTERCHANGEABLE
TEST SET,ELECTRICAL METER

Frequently Asked Questions

What is NSN 4820-00-540-4108?

NSN 4820-00-540-4108 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 4820-00-540-4108?

NSN 4820-00-540-4108 has 6 cross-referenced part numbers: AA11236 (Eaton Aerospace, Llc Dba Jackson South), N20373 (Hydro-Aire Aerospace Corp), AN6200-6AB (Aeronautical Standards Group Dept of Navy and Air Force), 20373 (Hydro-Aire Aerospace Corp), 1040 (Hydro-Aire Aerospace Corp) and 1 more.

What NSN replaces 4820-00-540-4108?

There are 12 known substitutes for 4820-00-540-4108: 4310-00-140-5437, 5330-00-146-8711, 5955-00-219-3751 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA11236?

Key specifications for AA11236: Thread Direction: RIGHT-HAND SECOND END; Connection Style: GASKET SEAL(BOSS) FIRST END; Thread Quantity Per Inch: 18 FIRST END; Thread Class: 3B FIRST END. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-540-4108 still in active supply?

NSN 4820-00-540-4108 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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