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Technical Data Sheet
PartsTable / MRO / 265A
265A ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 EYESHIELD,OPTICAL INSTRUMENT is a the manufacturer optical transceiver module designed for high-speed data center interconnects. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6220-00-146-1581, 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
MRO→ MRO_GENERAL→ 265A
NSN: 6220-00-146-1581
FSC: 6220
CAGE: 81834 — GROTE INDUSTRIES INC DBA GROTE MANUFACTURING CO DIV MILITARY PRODUCTS (USA)
SPECIFICATIONS
Part Number265A
NSN6220-00-146-1581
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available EYESHIELD,OPTICAL INSTRUMENT TITLE COMPONENT PN 265A MFR EYESHIELD,OPTICAL INST
KEY FEATURES
•
SURFACE CONDITION: GROOVED BACK
•
LIGHT TRANSMISSION DESIGN: TRANSLUCENT LENS
•
COLOR: AMBER LENS
•
MOUNTING METHOD: PRESS FIT
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 (FLIS)
SURFACE CONDITIONGROOVED BACK
OVERALL WIDTH1.125 INCHES NOMINAL IN
OVERALL LENGTH3.500 INCHES NOMINAL IN
LIGHT TRANSMISSION DESIGNTRANSLUCENT LENS
OVERALL HEIGHT0.750 INCHES NOMINAL IN
COLORAMBER LENS
MOUNTING METHODPRESS FIT
SURFACE CONDITIONSMOOTH FACE
STYLE DESIGNATORCONVEX
MATERIALPLASTIC ACRYLIC LENS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
M-387Interchangeable
interchangeable cross-reference
interchangeable
M-253040-1Interchangeable
interchangeable cross-reference
interchangeable
253040Interchangeable
interchangeable cross-reference
interchangeable
265AInterchangeable
interchangeable cross-reference
interchangeable
103-232-799Interchangeable
interchangeable cross-reference
interchangeable
34C1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 265A?
265A is a EYESHIELD,OPTICAL INSTRUMENT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 265A?
There are 9 known substitutes for 265A: M-387, M-253040-1, 253040 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 265A?
265A is cataloged in the Federal Logistics Information System (FLIS) under NSN 6220-00-146-1581. 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