Welcome to STM Industries LLC.

STM Industries, LLC  is an approved Pratt & Whitney source that performs special processes associated with the aerospace industry.  Current capabilities include:


  • Hydraulic and pneumatic pressure, leak and proof testing to pressures as high as 10,000 psig. 


  • Hot oil flow & target testing in accordance with PW-PPS-2062 (We are a PWA Approved source).


  • Balancing per BSQ and BRM-Master approved.


  • Aerospace grade cleaning, Ultrasonic cleaning and flushing available NOW to Customer requirements.


STM Industries, LLC is AS9100 Rev. C compliant. 

Our PWA Vendor Code is 00541.

Contact Us

STM Industries LLC

121 Commerce Way

South Windsor, CT 06074


860 785-8425 860 785-8425



Or use our contact form. 


STM Industries LLC is now capable of Precision Clean & Flushing!!  Static and Dynamic Balancing is here!

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