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LD172589GP117 — Technical Data Sheet

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NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER · 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 LENS,OPTICAL INSTRUMENT is a NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER optical transceiver module designed for high-speed data center interconnects. Key specifications include DIAMETER: 0.847 INCHES NOMINAL IN, MATERIAL: GLASS OPTICAL, ABBE CONSTANT: 29.300 AND 57.700, AXIAL THICKNESS: 0.079 INCHES NOMINAL AND 0.193 INCHES NOMINAL IN, REFRACTION INDEX: 1.7200 NOMINAL AND 1.5740 NOMINAL, BACK FOCAL LENGTH: 5.776 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6650-00-382-1889, 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
LD172589GP117
NSN: 6650-00-382-1889
FSC: 6650
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
DIAMETER0.847 INCHES NOMINAL IN
MATERIALGLASS OPTICAL
ABBE CONSTANT29.300 AND 57.700
AXIAL THICKNESS0.079 INCHES NOMINAL AND 0.193 INCHES NOMINAL IN
REFRACTION INDEX1.7200 NOMINAL AND 1.5740 NOMINAL
BACK FOCAL LENGTH5.776 INCHES IN
FRONT FOCAL LENGTH5.217 INCHES IN
COMPOUND LENS STYLEDOUBLET
FSC APPLICATION DATAFIRE CONTROL,TELESCOPE,MK 104 MOD 0
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND DOUBLE CONCAVE
EQUIVALENT FOCAL LENGTH7.205 INCHES IN
ELEMENT LEFT SURFACE RADIUS-1.248 INCHES AND 3.937 INCHES IN
NSN6650-00-382-1889
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER LENS,OPTICAL INSTRUMENT TITLE COMPONENT PN LD172589GP117 MFR NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER LENS,OPTICAL INSTRUMEN
KEY FEATURES
•
DIAMETER: 0.847 INCHES NOMINAL IN
•
MATERIAL: GLASS OPTICAL
•
FSC APPLICATION DATA: FIRE CONTROL,TELESCOPE,MK 104 MOD 0
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
•
REFRACTION INDEX: 1.7200 NOMINAL AND 1.5740 NOMINAL
•
COMPOUND LENS STYLE: DOUBLET
•
COMPOUND LENS OVERALL AXIAL THICKNESS: 0.272 INCHES NOMINAL IN
•
EQUIVALENT FOCAL LENGTH: 7.205 INCHES 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 (FLIS)
DIAMETER0.847 INCHES NOMINAL IN
MATERIALGLASS OPTICAL
FSC APPLICATION DATAFIRE CONTROL,TELESCOPE,MK 104 MOD 0
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
REFRACTION INDEX1.7200 NOMINAL AND 1.5740 NOMINAL
COMPOUND LENS STYLEDOUBLET
COMPOUND LENS OVERALL AXIAL THICKNESS0.272 INCHES NOMINAL IN
EQUIVALENT FOCAL LENGTH7.205 INCHES IN
COMPOUND LENS EDGE THICKNESS0.221 INCHES NOMINAL IN
ELEMENT RIGHT SURFACE RADIUS-1.248 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
4L260Interchangeable
interchangeable cross-reference
interchangeable
70-0500-526Interchangeable
interchangeable cross-reference
interchangeable
1260Interchangeable
interchangeable cross-reference
interchangeable
511502Interchangeable
interchangeable cross-reference
interchangeable
AA-21386AInterchangeable
interchangeable cross-reference
interchangeable
1592540Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LD172589GP117?
LD172589GP117 is a LENS,OPTICAL INSTRUMENT manufactured by NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER.
What parts can replace LD172589GP117?
There are 9 known substitutes for LD172589GP117: 4L260, 70-0500-526, 1260 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LD172589GP117?
LD172589GP117 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6650-00-382-1889. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026