PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-8972Valve,plug

Parker Hannifin Corporation Div Aerospace Group Headquarters · NSN 4820-00-573-7547 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-573-7547 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-573-7547. Primary manufacturer part number: 3-8972.
Features
  • Valve,plug — FSC 4820
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Thread Class: 3A ALL ENDS A
  • Valve Operation Method: MANUAL
  • Features Provided: ADJUSTABLE ROTATION STOP
  • Connection Style: FLARED (TUBE) ALL ENDS
  • Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Nominal Thread Size: 0.562 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Valve,plug, cataloged under National Stock Number 4820-00-573-7547, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corporation Div Aerospace Group Headquarters. Government technical data includes 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-573-7547
Primary Part Number3-8972
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Aerospace Group Headquarters
StatusCANCELLED
Thread DirectionRIGHT-HAND ALL ENDS
Thread Class3A ALL ENDS A
Valve Operation MethodMANUAL
Features ProvidedADJUSTABLE ROTATION STOP
Connection StyleFLARED (TUBE) ALL ENDS
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Nominal Thread Size0.562 INCHES ALL ENDS IN
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Media for Which DesignedHYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
Operating Pressure25.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorUNF ALL ENDS
Surface TreatmentANODIZE
Seat Angle37.0 DEGREES ALL ENDS
Flow StyleTWO-WAY TWO PORT 90 DEGREE PLUG TURN
Mounting FacilityTHREADED FASTENER
MaterialALUMINUM ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-045-3299MS35338-42 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3110-00-156-5403 INTERCHANGEABLE
Bearing,ball,annular
5330-00-291-663110B7411 INTERCHANGEABLE
Gasket
Napco International Llc Dba Napco International Inc
5961-00-752-6121 INTERCHANGEABLE
Semiconductor Device,diode
5950-00-892-8301128C535H41 INTERCHANGEABLE
Coil,radio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-00-993-6277 INTERCHANGEABLE
Transistor
5325-01-089-741210470 INTERCHANGEABLE
Ring,retaining
Weldon Pump Llc
5965-01-105-785910470 INTERCHANGEABLE
Headset,electrical
Astrocom Electronics Inc
5331-01-322-651810470 INTERCHANGEABLE
O-Ring
Eaton Corporation Div Fed
5970-01-340-739710251-4036 INTERCHANGEABLE
Insulator,plate
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
Cross-Reference Index
Part NumberManufacturer
10470 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
3-8972 PRIMARY Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
Related Parts
5310-00-045-3299INTERCHANGEABLE
WASHER,LOCK
MS35338-42
3110-00-156-5403INTERCHANGEABLE
BEARING,BALL,ANNULAR
5330-00-291-6631INTERCHANGEABLE
GASKET
10B7411
5961-00-752-6121INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5950-00-892-8301INTERCHANGEABLE
COIL,RADIO FREQUENCY
128C535H41
5961-00-993-6277INTERCHANGEABLE
TRANSISTOR
5325-01-089-7412INTERCHANGEABLE
RING,RETAINING
10470
5965-01-105-7859INTERCHANGEABLE
HEADSET,ELECTRICAL
10470
5331-01-322-6518INTERCHANGEABLE
O-RING
10470
5970-01-340-7397INTERCHANGEABLE
INSULATOR,PLATE
10251-4036
5360-01-423-5313INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
38972
5935-01-447-5080INTERCHANGEABLE
ADAPTER,CONNECTOR
U/AD48

Frequently Asked Questions

What is NSN 4820-00-573-7547?

NSN 4820-00-573-7547 is a Valve,plug, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-573-7547?

NSN 4820-00-573-7547 has 2 cross-referenced part numbers: 10470 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 3-8972 (Parker Hannifin Corporation Div Aerospace Group Headquarters).

What NSN replaces 4820-00-573-7547?

There are 12 known substitutes for 4820-00-573-7547: 5310-00-045-3299, 3110-00-156-5403, 5330-00-291-6631 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-8972?

Key specifications for 3-8972: Thread Direction: RIGHT-HAND ALL ENDS; Thread Class: 3A ALL ENDS A; Valve Operation Method: MANUAL; Features Provided: ADJUSTABLE ROTATION STOP. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-573-7547 still in active supply?

NSN 4820-00-573-7547 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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