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TL242A — Technical Data Sheet

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MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO · 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

CELL ASSEMBLY,OPTICAL INSTRUMENT. Key specifications include OVERALL DIAMETER: 6.000 INCHES NOMINAL IN, SPECIAL FEATURES: EFL-10",FOV+/-36DEG.;WAVELENGTH RANGE 8-12 MICRONS;GERMANIUM COATED, OPTICAL ELEMENT TYPE: SINGLE LENS, END ITEM IDENTIFICATION: 55 TEST FIXTURE, ACCESSORY COMPONENTS AND QUANTITY: CYLINDRICAL MOUNT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 6650-01-378-6075, 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
TL242A
NSN: 6650-01-378-6075
FSC: 6650
CAGE: 12464 — MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO (USA)
SPECIFICATIONS
OVERALL DIAMETER6.000 INCHES NOMINAL IN
SPECIAL FEATURESEFL-10",FOV+/-36DEG.;WAVELENGTH RANGE 8-12 MICRONS;GERMANIUM COATED
OPTICAL ELEMENT TYPESINGLE LENS
END ITEM IDENTIFICATION55 TEST FIXTURE
OPTICAL ELEMENT QUANTITY1
ACCESSORY COMPONENTS AND QUANTITYCYLINDRICAL MOUNT
NSN6650-01-378-6075
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO CELL ASSEMBLY,OPTICAL INSTRUMENT TITLE COMPONENT PN TL242A MFR MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO CELL ASSEMBLY,OPTICAL
KEY FEATURES
•
ACCESSORY COMPONENTS AND QUANTITY: CYLINDRICAL MOUNT
•
OPTICAL ELEMENT TYPE: SINGLE LENS
•
OPTICAL ELEMENT QUANTITY: 1
•
OVERALL DIAMETER: 6.000 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS
ACCESSORY COMPONENTS AND QUANTITYCYLINDRICAL MOUNT
OPTICAL ELEMENT TYPESINGLE LENS
SPECIAL FEATURESEFL-10",FOV+/-36DEG.;WAVELENGTH RANGE 8-12 MICRONS;GERMANIUM COATED
OPTICAL ELEMENT QUANTITY1
END ITEM IDENTIFICATION55 TEST FIXTURE
OVERALL DIAMETER6.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
22146InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
22146-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10-40820-27InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7627169InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
298418InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TL242A?
TL242A is a CELL ASSEMBLY,OPTICAL INSTRUMENT manufactured by MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO.
What parts can replace TL242A?
There are 5 known substitutes for TL242A: 22146, 22146-1, 10-40820-27 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TL242A?
TL242A is cataloged in the Federal Logistics Information System under NSN 6650-01-378-6075. 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.
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Last verified: October 2026