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Y644 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include tube_type: TETRODE, special_features: ENVELOPE MATERIAL :CERAMIC AND METAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-985-9059, 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
Y644
NSN: 5960-00-985-9059
FSC: 5960
CAGE: 06980 — COMMUNICATIONS & POWER INDUSTRIES LLC DBA CPI DIV MICROWAVE POWER PRODUCTS DIVISION - EIMAC OPERATIONS (USA)
SPECIFICATIONS
tube_typeTETRODE
special_featuresENVELOPE MATERIAL :CERAMIC AND METAL
NSN5960-00-985-9059
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN Y644 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
TUBE TYPE: TETRODE
TECHNICAL CHARACTERISTICS (FLIS)
TUBE TYPETETRODE
SPECIAL FEATURESENVELOPE MATERIAL :CERAMIC AND METAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
7034Interchangeable
interchangeable cross-reference
interchangeable
05005201Interchangeable
interchangeable cross-reference
interchangeable
5403-22Interchangeable
interchangeable cross-reference
interchangeable
DR2Interchangeable
interchangeable cross-reference
interchangeable
S3568Interchangeable
interchangeable cross-reference
interchangeable
3206837Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Y644?
Y644 is a RELAY,ELECTROMAGNETIC.
What parts can replace Y644?
There are 19 known substitutes for Y644: 7034, 05005201, 5403-22 and 16 more. Substitute compatibility should be verified for your specific system.
Is Y644 still available?
Y644 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026