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SM-D-850408 — RING,RETAINING,OPTICAL ELEMENT

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

SM-D-850408: RING,RETAINING,OPTICAL ELEMENT.

The RING,RETAINING,OPTICAL ELEMENT is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include material: ALUMINUM ALLOY 6061, thread_location: INTERNAL, outside_diameter: 2.060 INCHES NOMINAL IN, aperture_diameter: 1.840 INCHES NOMINAL IN, fsc_application_data: NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION, internal_flange_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5855-01-165-2177, 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→ SM-D-850408
NSN: 5855-01-165-2177
FSC: 5855 — Night Vision Equipment, Emitted and Reflected Radiation
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
thread_locationINTERNAL
outside_diameter2.060 INCHES NOMINAL IN
aperture_diameter1.840 INCHES NOMINAL IN
fsc_application_dataNIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION
internal_flange_thickness0.125 INCHES NOMINAL IN
NSN5855-01-165-2177
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,RETAINING,OPTICAL ELEMENT TITLE COMPONENT PN SM-D-850408 MFR RING,RETAINING,OPTICAL
KEY FEATURES
•
FSC APPLICATION DATA: NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION
•
INTERNAL FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.060 INCHES NOMINAL IN
•
THREAD LOCATION: INTERNAL
•
APERTURE DIAMETER: 1.840 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 6061
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 DATANIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION
INTERNAL FLANGE THICKNESS0.125 INCHES NOMINAL IN
OUTSIDE DIAMETER2.060 INCHES NOMINAL IN
THREAD LOCATIONINTERNAL
APERTURE DIAMETER1.840 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 6061
OTHER ITEMS IN FSC 5855 — Night Vision Equipment, Emitted and Reflected Radiation
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5855-00-003-2243 5855-00-003-3228 5855-00-003-6408 5855-00-004-0904 5855-00-004-1909 5855-00-006-9703 5855-00-007-5137 5855-00-010-0147
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 — mutilation
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FREQUENTLY ASKED QUESTIONS
What is SM-D-850408?
SM-D-850408 is a RING,RETAINING,OPTICAL ELEMENT. It is classified as a MRO (MRO_GENERAL).
What is the NSN for SM-D-850408?
SM-D-850408 is cataloged in the U.S. Government catalog under NSN 5855-01-165-2177. 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.