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8933Y640 ✓ 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 tube_type: TRIODE, special_features: CONTROLLING AGENCY:VARIAN,EIMAC DIV; ENVELOPE MATERIAL:CERAMIC AND METAL; MANUFACTURER CLASSIFICATION:PLANAR, identifying_number: 8933 REFERENCE NO.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-01-278-2416, 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
8933Y640
NSN: 5960-01-278-2416
FSC: 5960
CAGE: 06980 — COMMUNICATIONS & POWER INDUSTRIES LLC DBA CPI DIV MICROWAVE POWER PRODUCTS DIVISION - EIMAC OPERATIONS (USA)
SPECIFICATIONS
tube_typeTRIODE
special_featuresCONTROLLING AGENCY:VARIAN,EIMAC DIV; ENVELOPE MATERIAL:CERAMIC AND METAL; MANUFACTURER CLASSIFICATION:PLANAR
identifying_number8933 REFERENCE NO.
NSN5960-01-278-2416
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ELECTRON TUBE TITLE COMPONENT PN 8933Y640 MFR ELECTRON TUBE
KEY FEATURES
•
IDENTIFYING NUMBER: 8933 REFERENCE NO.
•
TUBE TYPE: TRIODE
TECHNICAL CHARACTERISTICS (FLIS)
IDENTIFYING NUMBER8933 REFERENCE NO.
SPECIAL FEATURESCONTROLLING AGENCY:VARIAN,EIMAC DIV; ENVELOPE MATERIAL:CERAMIC AND METAL; MANUFACTURER CLASSIFICATION:PLANAR
TUBE TYPETRIODE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
394338Interchangeable
interchangeable cross-reference
interchangeable
693480Interchangeable
interchangeable cross-reference
interchangeable
495181Interchangeable
interchangeable cross-reference
interchangeable
725900-50Interchangeable
interchangeable cross-reference
interchangeable
ROM/PROM FAMILY 059Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8933Y640?
8933Y640 is a ELECTRON TUBE.
What parts can replace 8933Y640?
There are 5 known substitutes for 8933Y640: 394338, 693480, 495181 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8933Y640?
8933Y640 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-01-278-2416. 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