PartsTable
Technical Data Sheet
Download PDF

8598954 — LENS,OPTICAL INSTRUMENT

✓ Government record, cited
COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE · COMPONENT
PRODUCT OVERVIEW

8598954: LENS,OPTICAL INSTRUMENT.

The LENS,OPTICAL INSTRUMENT is a COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE optical transceiver module designed for high-speed data center interconnects. Key specifications include DIAMETER: 1.100 INCHES NOMINAL IN, MATERIAL: GLASS OPTICAL, ABBE CONSTANT: 57.400 AND 30.900, AXIAL THICKNESS: 0.233 INCHES NOMINAL AND 0.107 INCHES NOMINAL IN, REFRACTION INDEX: 1.5722 NOMINAL AND 1.6890 NOMINAL, BACK FOCAL LENGTH: 3.335 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 6650-00-683-9128, 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
8598954
NSN: 6650-00-683-9128
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
DIAMETER1.100 INCHES NOMINAL IN
MATERIALGLASS OPTICAL
ABBE CONSTANT57.400 AND 30.900
AXIAL THICKNESS0.233 INCHES NOMINAL AND 0.107 INCHES NOMINAL IN
REFRACTION INDEX1.5722 NOMINAL AND 1.6890 NOMINAL
BACK FOCAL LENGTH3.335 INCHES IN
COMPOUND LENS STYLEDOUBLET
FSC APPLICATION DATASIGHT,INFINITY,M44C,INTEGRATED WITH FIRE CONTROL EQUIPMENT
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND PLANO-CONCAVE
EQUIVALENT FOCAL LENGTH3.500 INCHES IN
ELEMENT LEFT SURFACE RADIUS2.326 INCHES IN
COMPOUND LENS EDGE THICKNESS0.218 INCHES NOMINAL IN
NSN6650-00-683-9128
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE LENS,OPTICAL INSTRUMENT TITLE COMPONENT PN 8598954 MFR COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE LENS,OPTICAL INSTRUMEN
KEY FEATURES
•
FSC APPLICATION DATA: SIGHT,INFINITY,M44C,INTEGRATED WITH FIRE CONTROL EQUIPMENT
•
INDIVIDUAL LENS STYLE: DOUBLE CONVEX AND PLANO-CONCAVE
•
BACK FOCAL LENGTH: 3.335 INCHES IN
•
ELEMENT LEFT SURFACE RADIUS: 2.326 INCHES IN
•
EQUIVALENT FOCAL LENGTH: 3.500 INCHES IN
•
ELEMENT RIGHT SURFACE RADIUS: 1.511 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
•
DIAMETER: 1.100 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
FSC APPLICATION DATASIGHT,INFINITY,M44C,INTEGRATED WITH FIRE CONTROL EQUIPMENT
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND PLANO-CONCAVE
BACK FOCAL LENGTH3.335 INCHES IN
ELEMENT LEFT SURFACE RADIUS2.326 INCHES IN
EQUIVALENT FOCAL LENGTH3.500 INCHES IN
ELEMENT RIGHT SURFACE RADIUS1.511 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
DIAMETER1.100 INCHES NOMINAL IN
ABBE CONSTANT57.400 AND 30.900
AXIAL THICKNESS0.233 INCHES NOMINAL AND 0.107 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
MIL013830Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
Ready to buy 8598954?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 8598954?
8598954 is a LENS,OPTICAL INSTRUMENT manufactured by COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE.
What parts can replace 8598954?
There is 1 known substitute for 8598954: MIL013830. Substitute compatibility should be verified for your specific system.
What is the NSN for 8598954?
8598954 is cataloged in the U.S. Government catalog under NSN 6650-00-683-9128. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 8598954

✓ 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.