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4-65A ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The ELECTRON TUBE is a the manufacturer industrial component. Key specifications include phase: SINGLE, material: GLASS, tube_type: TETRODE, control_type: LOCAL, overall_width: 5.125 INCHES NOMINAL IN, inclosure_type: ENCASED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-243-5017, 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
4-65A
NSN: 5960-00-243-5017
FSC: 5960
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
phaseSINGLE
materialGLASS
tube_typeTETRODE
control_typeLOCAL
overall_width5.125 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height3.437 INCHES NOMINAL IN
overall_length11.000 INCHES NOMINAL IN
special_featuresENVELOPE MATERIAL: GLASS
basic_shape_styleRECTANGULAR OR SQUARE
installation_designTOP OF CABINET/COUNTER
frequency_per_channel1.0 HERTZ MINIMUM OPERATING CHANNEL AND 1.0 MEGAHERTZ MAXIMUM OPERATING CHANNEL
NSN5960-00-243-5017
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ELECTRON TUBE TITLE COMPONENT PN 4-65A MFR ELECTRON TUBE
KEY FEATURES
•
TUBE TYPE: TETRODE
•
NONDEFINITIVE SPEC/STD DATA: 4-65A TYPE A
TECHNICAL CHARACTERISTICS (FLIS)
TUBE TYPETETRODE
SPECIAL FEATURESENVELOPE MATERIAL: GLASS
NONDEFINITIVE SPEC/STD DATA4-65A TYPE A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
465AInterchangeable
interchangeable cross-reference
interchangeable
AM4826UInterchangeable
interchangeable cross-reference
interchangeable
MIL-H-65AInterchangeable
interchangeable cross-reference
interchangeable
8165/4-65AInterchangeable
interchangeable cross-reference
interchangeable
C11835BPC7Interchangeable
interchangeable cross-reference
interchangeable
8165M4-65Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-65A?
4-65A is a ELECTRON TUBE.
What parts can replace 4-65A?
There are 7 known substitutes for 4-65A: 465A, AM4826U, MIL-H-65A and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-65A?
4-65A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-243-5017. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026