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Technical Data Sheet
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12AT7 ✓ 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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include material: COPPER ALLOY CONTACT, tube_type: TRIODE, body_style: BOTTOM MOUNT W/METAL SADDLE, temp_rating: 100.0 CELSIUS DEGC, overall_width: 1.375 INCHES MAXIMUM IN, overall_height: 1.016 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-166-7662, 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
12AT7
NSN: 5960-00-166-7662
FSC: 5960
CAGE: D1901 — HENSOLDT SENSORS GMBH DIV SEPS (DEU)
SPECIFICATIONS
materialCOPPER ALLOY CONTACT
tube_typeTRIODE
body_styleBOTTOM MOUNT W/METAL SADDLE
temp_rating100.0 CELSIUS DEGC
overall_width1.375 INCHES MAXIMUM IN
overall_height1.016 INCHES MAXIMUM IN
overall_length1.875 INCHES MAXIMUM IN
mounting_methodSADDLE
special_featuresENVELOPE MATERIAL: GLASS
polarization_typeCENTER KEY HOLE
precious_materialGOLD
surface_treatmentGOLD AND COPPER CONTACT
NSN5960-00-166-7662
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOCKET,PLUG-IN ELECTRONIC COMPON TITLE COMPONENT PN 12AT7 MFR SOCKET,PLUG-IN ELECTRO
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: 12AT7 TYPE
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA12AT7 TYPE
SPECIAL FEATURESENVELOPE MATERIAL: GLASS; MFG CLASS: AMPLIFIER TUBE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
347-314-001Interchangeable
interchangeable cross-reference
interchangeable
12AT7ECC81Interchangeable
interchangeable cross-reference
interchangeable
125833Interchangeable
interchangeable cross-reference
interchangeable
12AT7Interchangeable
interchangeable cross-reference
interchangeable
555031-395Interchangeable
interchangeable cross-reference
interchangeable
352250028166Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12AT7?
12AT7 is a SOCKET,PLUG-IN ELECTRONIC COMPON.
What parts can replace 12AT7?
There are 15 known substitutes for 12AT7: 347-314-001, 12AT7ECC81, 125833 and 12 more. Substitute compatibility should be verified for your specific system.
Is 12AT7 still available?
12AT7 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