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4B31 — ELECTRON TUBE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4B31: ELECTRON TUBE.

The ELECTRON TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, tube_type: RECTIFIER, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, power_rating: 2.0 WATTS AVERAGE2.0 WATTS AVERAGE, overall_length: 1.620 INCHES NOMINAL1.620 INCHES NOMINAL IN, frequency_range: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 4.000 GIGAHERTZ MAXIMUM4.000 GIGAHERTZ MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5960-00-166-7685, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4B31
NSN: 5960-00-166-7685
NIINs: 001667685, 010834239
FSC: 5960 — Electron Tubes and Associated Hardware
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
tube_typeRECTIFIER
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
power_rating2.0 WATTS AVERAGE2.0 WATTS AVERAGE
overall_length1.620 INCHES NOMINAL1.620 INCHES NOMINAL IN
frequency_range0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 4.000 GIGAHERTZ MAXIMUM4.000 GIGAHERTZ MAXIMUM
mounting_methodCONNECTORCONNECTOR
overall_diameter0.375 INCHES MAXIMUM0.375 INCHES MAXIMUM IN
application_designTRANSMISSION LINETRANSMISSION LINE
fsc_application_dataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
operating_temp_range-65.0 TO 125.0 CELSIUS-65.0 TO 125.0 CELSIUS DEGC
terminal_type_and_quantity2 CONNECTOR2 CONNECTOR
NSN5960-00-166-7685
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ELECTRON TUBE TITLE COMPONENT PN 4B31 MFR ELECTRON TUBE
KEY FEATURES
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TUBE TYPE: RECTIFIER
•
NONDEFINITIVE SPEC/STD DATA: 4B31 TYPE
TECHNICAL CHARACTERISTICS
TUBE TYPERECTIFIER
NONDEFINITIVE SPEC/STD DATA4B31 TYPE
SUBSTITUTES & CROSS-REFERENCES 2
MIL-E-1/615Reference document
Same NSN cross-reference
Reference document — Identification reference
DMS 85004BReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required (F)
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FREQUENTLY ASKED QUESTIONS
What is 4B31?
4B31 is a ELECTRON TUBE.
What parts can replace 4B31?
There are 2 known substitutes for 4B31: MIL-E-1/615, DMS 85004B. Substitute compatibility should be verified for your specific system.
What is the NSN for 4B31?
4B31 is cataloged in the U.S. Government catalog under NSN 5960-00-166-7685. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.