DRS Technologies Inc. of Parsippany, N.J., has received an initial order of $36.4 million on a five-year contract with the Network Centric Systems business of the Raytheon Co. of Waltham, Mass. Under the agreement, which has a projected minimum value of approximately $101 million, the New York-based company will provide forward-looking infrared systems and integrated optical benches for the Long Range Advanced Scout Surveillance System.