Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Thorlabs
The Thorlabs 352170-C is an unmounted Geltech aspheric lens featuring an effective focal length of 6.16 mm, a numerical aperture of 0.3, and an antireflection coating for 1050 to 1620 nm. Released on March 7, 2008, this discontinued component has an official replacement model of 354171-C. Although no longer stocked, this item remains available by special order. Submit the exact part number, quantity, and application requirements for a quote on current pricing and lead times.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Thorlabs 352170-C. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.