Setting Ideas into Motion SDP/SI - Stock Drive Products/Sterling Instrument provides mechanical components, engineering and manufacturing services for industrial and commercial applications. Providing Component Choices and Design Solutions Since 1950 Design engineers depend on SDP/SI for high-quality components, subassemblies, and engineering expertise. As a company founded and managed by engineers we understand and respond to the developing needs of our customers better than anyone. Over 87,000 inch and metric dimensioned components are available for fast turnaround. When a standard product won't meet your requirements we can provide alternative solutions through custom design and manufacturing. Our engineering and manufacturing teams will partner with you throughout the entire process. By providing engineering, manufacturing, assembly, 3D printing and testing in one location we can ensure the end product will meet your expectations. AS9100 Registered.
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The SDP/SI Mechanical Components, QTC Metric Gears, QBC Bearings - Designatronics annual revenue was $46.2 million in 2026.
Robert Kufner is the President and Chief Executive Officer of SDP/SI Mechanical Components, QTC Metric Gears, QBC Bearings - Designatronics.
51 people are employed at SDP/SI Mechanical Components, QTC Metric Gears, QBC Bearings - Designatronics.
SDP/SI Mechanical Components, QTC Metric Gears, QBC Bearings - Designatronics is based in Hicksville, New York.
The NAICS codes for SDP/SI Mechanical Components, QTC Metric Gears, QBC Bearings - Designatronics are [33, 333].
The SIC codes for SDP/SI Mechanical Components, QTC Metric Gears, QBC Bearings - Designatronics are [356, 37, 371, 35].