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QT18/27 ✓ 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 QT18/27 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-01-345-2251, 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
QT18/27
NSN: 6240-01-345-2251
FSC: 6240
CAGE: 057V6 — EIKO, LTD. DIV EIKO GLOBAL, LLC (USA)
SPECIFICATIONS
Part NumberQT18/27
NSN6240-01-345-2251
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available QT18/27 TITLE COMPONENT PN QT18/27 MFR QT18/27
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
BULB DESIGNATOR: T4/G24D-2
•
BULB STYLE: T ("U" SHAPED TUBULAR)
•
BASE STYLE: MEDIUM TWO PIN
•
WATTAGE RATING: 18.000 WATTS
•
STARTING CHARACTERISTIC: PREHEAT
•
RATED AVERAGE LIFE: HOURS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH6.688 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
BULB DESIGNATORT4/G24D-2
BULB STYLET ("U" SHAPED TUBULAR)
BASE STYLEMEDIUM TWO PIN
WATTAGE RATING18.000 WATTS
STARTING CHARACTERISTICPREHEAT
RATED AVERAGE LIFEHOURS
SPECIAL FEATURESENERGY SAVING;SPX27
ENVIRONMENTAL ATTRIBUTE CODECOMPACT FLUORESCENT LAMP (CFL) LIGHT BULBS - ENERGY STAR-LIGHTING - ENERGY EFFICIENT PRODUCTS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
104081Interchangeable
interchangeable cross-reference
interchangeable
215950Interchangeable
interchangeable cross-reference
interchangeable
0215950Interchangeable
interchangeable cross-reference
interchangeable
18564Interchangeable
interchangeable cross-reference
interchangeable
VS4060-705Interchangeable
interchangeable cross-reference
interchangeable
20492Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is QT18/27?
QT18/27 is a QT18/27.
What parts can replace QT18/27?
There are 25 known substitutes for QT18/27: 104081, 215950, 0215950 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for QT18/27?
QT18/27 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-01-345-2251. 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