PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

63547EValve,float

Griswold Industries Dba Cla-Val Co · NSN 4820-01-239-8914 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-239-8914 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-239-8914. Primary manufacturer part number: 63547E.
Features
  • Valve,float — FSC 4820
  • Thread Series Designator: UNIFIED NATIONAL JOINT (UNJ) ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES ALL ENDS IN
  • Thread Quantity Per Inch: 18 ALL ENDS
  • Media for Which Designed: FUEL/OIL, HYDROCARBON FIRST RESPONSE
  • Nominal Thread Size: 0.562 INCHES ALL ENDS IN
  • Thread Class: 3B ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy R-405 Overall construction
General Description

The Valve,float, cataloged under National Stock Number 4820-01-239-8914, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-239-8914
Primary Part Number63547E
Item NameValve,float
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusCANCELLED
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
Style DesignatorSTRAIGHT THRU
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Thread Quantity Per Inch18 ALL ENDS
Media for Which DesignedFUEL/OIL, HYDROCARBON FIRST RESPONSE
Nominal Thread Size0.562 INCHES ALL ENDS IN
Thread Class3B ALL ENDS
Maximum Operating Temp140.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flow Control DeviceDISK
Media for Which DesignedWATER, FRESH SECOND RESPONSE
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation MethodAUTOMATIC
MaterialNICKEL ALLOY R-405 OVERALL
Thread DirectionRIGHT-HAND ALL ENDS
Connection TypeTHREADED INTERNAL TUBE ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
2920-00-431-0169WKA225T38 INTERCHANGEABLE
Spark Plug
Robert Bosch Gesellschaft Mit Beschrankter Haftung
2825-00-509-6319LA63547 INTERCHANGEABLE
Block,knife Edge
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
4820-01-239-904520830801H INTERCHANGEABLE
Stem,fluid Valve
Griswold Industries Dba Cla-Val Co
4820-01-239-9216C3649F INTERCHANGEABLE
Float,valve
Griswold Industries Dba Cla-Val Co
1630-01-649-953563-547 INTERCHANGEABLE
Nut,self Locking
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
63547E PRIMARY Griswold Industries Dba Cla-Val Co (USA)
63547 Griswold Industries Dba Cla-Val Co (USA)
1626M-2 Griswold Industries Dba Cla-Val Co (USA)
Related Parts
2920-00-431-0169INTERCHANGEABLE
SPARK PLUG
WKA225T38
2825-00-509-6319INTERCHANGEABLE
BLOCK,KNIFE EDGE
LA63547
4820-01-239-9045INTERCHANGEABLE
STEM,FLUID VALVE
20830801H
4820-01-239-9216INTERCHANGEABLE
FLOAT,VALVE
C3649F
1630-01-649-9535INTERCHANGEABLE
NUT,SELF LOCKING
63-547

Frequently Asked Questions

What is NSN 4820-01-239-8914?

NSN 4820-01-239-8914 is a Valve,float, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-239-8914?

NSN 4820-01-239-8914 has 3 cross-referenced part numbers: 63547E (Griswold Industries Dba Cla-Val Co), 63547 (Griswold Industries Dba Cla-Val Co), 1626M-2 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-239-8914?

There are 5 known substitutes for 4820-01-239-8914: 2920-00-431-0169, 2825-00-509-6319, 4820-01-239-9045 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 63547E?

Key specifications for 63547E: Thread Series Designator: UNIFIED NATIONAL JOINT (UNJ) ALL ENDS; Style Designator: STRAIGHT THRU; Nominal Outside Diameter Tube Accommodated: 0.375 INCHES ALL ENDS IN; Thread Quantity Per Inch: 18 ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-239-8914 still in active supply?

NSN 4820-01-239-8914 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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