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 151-411ST is a 50 mm travel micrometer head featuring 10 µm graduations and a spherical tip. Originally released on August 9, 2007, this discontinued component was last presented on the manufacturer web presence prior to its obsolescence. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this item.
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 151-411ST. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.