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655166 — RING,RETAINING,OPTICAL ELEMENT

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

655166: RING,RETAINING,OPTICAL ELEMENT.

The RING,RETAINING,OPTICAL ELEMENT 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 MATERIAL: STEEL CORROSION RESISTING, OVERALL LENGTH: 0.156 INCHES NOMINAL IN, OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN, MOUNTING CONFIGURATION: ONE 0.219 IN. DIA UNTREADED HOLE IN, INTERNAL FLANGE THICKNESS: 0.750 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 6650-00-152-8682, 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
655166
NSN: 6650-00-152-8682
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
MATERIALSTEEL CORROSION RESISTING
OVERALL LENGTH0.156 INCHES NOMINAL IN
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
MOUNTING CONFIGURATIONONE 0.219 IN. DIA UNTREADED HOLE IN
INTERNAL FLANGE THICKNESS0.750 INCHES NOMINAL IN
NSN6650-00-152-8682
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER RING,RETAINING,OPTICAL ELEMENT TITLE COMPONENT PN 655166 MFR NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER RING,RETAINING,OPTICAL
KEY FEATURES
•
INTERNAL FLANGE THICKNESS: 0.750 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
MOUNTING CONFIGURATION: ONE 0.219 IN. DIA UNTREADED HOLE IN
•
MATERIAL: STEEL CORROSION RESISTING
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
INTERNAL FLANGE THICKNESS0.750 INCHES NOMINAL IN
OVERALL LENGTH0.156 INCHES NOMINAL IN
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
MOUNTING CONFIGURATIONONE 0.219 IN. DIA UNTREADED HOLE IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 1
231649Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 655166?
655166 is a RING,RETAINING,OPTICAL ELEMENT manufactured by NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER.
What parts can replace 655166?
There is 1 known substitute for 655166: 231649. Substitute compatibility should be verified for your specific system.
What is the NSN for 655166?
655166 is cataloged in the U.S. Government catalog under NSN 6650-00-152-8682. 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.