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LD172599GP2 — LENS,OPTICAL INSTRUMENT

✓ Government record, cited
NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER · COMPONENT
PRODUCT OVERVIEW

LD172599GP2: LENS,OPTICAL INSTRUMENT.

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: 1.299 INCHES NOMINAL IN, MATERIAL: GLASS OPTICAL, ABBE CONSTANT: 64.500 AND 33.800, AXIAL THICKNESS: 0.335 INCHES NOMINAL AND 0.118 INCHES NOMINAL IN, REFRACTION INDEX: 1.5170 NOMINAL AND 1.6490 NOMINAL, BACK FOCAL LENGTH: 4.501 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 6650-00-152-6537, 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
LD172599GP2
NSN: 6650-00-152-6537
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
DIAMETER1.299 INCHES NOMINAL IN
MATERIALGLASS OPTICAL
ABBE CONSTANT64.500 AND 33.800
AXIAL THICKNESS0.335 INCHES NOMINAL AND 0.118 INCHES NOMINAL IN
REFRACTION INDEX1.5170 NOMINAL AND 1.6490 NOMINAL
BACK FOCAL LENGTH4.501 INCHES IN
FRONT FOCAL LENGTH4.067 INCHES IN
COMPOUND LENS STYLEDOUBLET
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND PLANO-CONCAVE
EQUIVALENT FOCAL LENGTH4.428 INCHES IN
COMPOUND LENS EDGE THICKNESS0.327 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
NSN6650-00-152-6537
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 LD172599GP2 MFR NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER LENS,OPTICAL INSTRUMEN
KEY FEATURES
•
INDIVIDUAL LENS STYLE: DOUBLE CONVEX AND PLANO-CONCAVE
•
BACK FOCAL LENGTH: 4.501 INCHES IN
•
FRONT FOCAL LENGTH: 4.067 INCHES IN
•
EQUIVALENT FOCAL LENGTH: 4.428 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
•
DIAMETER: 1.299 INCHES NOMINAL IN
•
ABBE CONSTANT: 64.500 AND 33.800
•
AXIAL THICKNESS: 0.335 INCHES NOMINAL AND 0.118 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
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND PLANO-CONCAVE
BACK FOCAL LENGTH4.501 INCHES IN
FRONT FOCAL LENGTH4.067 INCHES IN
EQUIVALENT FOCAL LENGTH4.428 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
DIAMETER1.299 INCHES NOMINAL IN
ABBE CONSTANT64.500 AND 33.800
AXIAL THICKNESS0.335 INCHES NOMINAL AND 0.118 INCHES NOMINAL IN
COMPOUND LENS EDGE THICKNESS0.327 INCHES NOMINAL IN
MATERIALGLASS OPTICAL
OTHER ITEMS IN FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6650-00-000-0164 6650-00-001-2319 6650-00-001-2322 6650-00-001-2323 6650-00-001-2324 6650-00-001-2326 6650-00-001-2327 6650-00-001-2328
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is LD172599GP2?
LD172599GP2 is a LENS,OPTICAL INSTRUMENT manufactured by NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER.
What is the NSN for LD172599GP2?
LD172599GP2 is cataloged in the U.S. Government catalog under NSN 6650-00-152-6537. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.