Aerospace Systems | Spectrum Associates, Inc. Spectrum Associates, Inc. is a leader in the design, qualification, and manufacture of a wide array of fluid pressure sensors, self-sealing crashworthy fuel breakaway valves, and various fuel system c Spectrum Associates, Inc. is a leader in the design, qualification, and manufacture of a wide array of fluid pressure sensors, self-sealing crashworthy fuel breakaway valves, and various fuel system components serving ground and air applications for both commercial and …