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 151-411S is a micrometer head featuring a 0 to 50 mm travel range, originally released on October 1, 2004, and discontinued on August 1, 2007. As a legacy component, this discontinued Thorlabs part is subject to verified historical lifecycle dates. Submit the exact part number, quantity, and application requirements to request a quote.
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 151-411S. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.