TransDigm Group, a leading global designer, producer and supplier of highly engineered aircraft components, sold Esterline Interface Technologies, a developer and manufacturer of interface solutions serving leading OEMs in the growing medical, commercial, industrial, diagnostics and gaming end markets, to an affiliate of KPS Capital Partners for $190m. W. Nicholas Howley, TransDigm Executive Chairman commented, "We are pleased to have an agreement for the divestiture of the EIT group of businesses. This is part of our previously communicated plan to evaluate and potentially divest businesses that do not align well with TransDigm's strategy."