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SM1S15 — RING,RETAINING,OPTICAL ELEMENT

✓ Government record, cited
THORLABS, INC · COMPONENT
PRODUCT OVERVIEW

SM1S15: RING,RETAINING,OPTICAL ELEMENT.

The RING,RETAINING,OPTICAL ELEMENT is a THORLABS, INC optical transceiver module designed for high-speed data center interconnects. Key specifications include MATERIAL: ALUMINUM, OVERALL LENGTH: 1.74 INCHES NOMINAL IN, THREAD LOCATION: EXTERNAL, OUTSIDE DIAMETER: 1.20 INCHES NOMINAL IN, SPECIAL FEATURES: 1.035 THREAD DIAMETER, APERTURE DIAMETER: 0.95 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 6650-01-696-5432, 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
SM1S15
NSN: 6650-01-696-5432
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
CAGE: 0LW43 — THORLABS, INC (USA)
SPECIFICATIONS
MATERIALALUMINUM
OVERALL LENGTH1.74 INCHES NOMINAL IN
THREAD LOCATIONEXTERNAL
OUTSIDE DIAMETER1.20 INCHES NOMINAL IN
SPECIAL FEATURES1.035 THREAD DIAMETER
APERTURE DIAMETER0.95 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS TUBE SPACER
NSN6650-01-696-5432
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: THORLABS, INC RING,RETAINING,OPTICAL ELEMENT TITLE COMPONENT PN SM1S15 MFR THORLABS, INC RING,RETAINING,OPTICAL
KEY FEATURES
•
OUTSIDE DIAMETER: 1.20 INCHES NOMINAL IN
•
THREAD LOCATION: EXTERNAL
•
APERTURE DIAMETER: 0.95 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM
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
OVERALL LENGTH1.74 INCHES NOMINAL IN
OUTSIDE DIAMETER1.20 INCHES NOMINAL IN
THREAD LOCATIONEXTERNAL
APERTURE DIAMETER0.95 INCHES NOMINAL IN
SPECIAL FEATURES1.035 THREAD DIAMETER
PART NAME ASSIGNED BY CONTROLLING AGENCYLENS TUBE SPACER
MATERIALALUMINUM
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SM1S15?
SM1S15 is a RING,RETAINING,OPTICAL ELEMENT manufactured by THORLABS, INC.
What is the NSN for SM1S15?
SM1S15 is cataloged in the U.S. Government catalog under NSN 6650-01-696-5432. 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.