The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking proposals for the procurement of four units of the MAINFRAME for the E-2D Advanced Hawkeye, identified by NSN 1680-01-661-8913. This presolicitation is for a firm fixed price, definite quantity acquisition, and requires compliance with various standards including MIL-STD-130 for markings and ISO 9001/SAE AS9100 for quality management, emphasizing the importance of quality control and configuration management in the procurement process. Interested contractors must submit their written proposals electronically, adhering to the specified requirements, with a delivery schedule of 365 days after receipt of order. For further details, potential offerors can contact Sabrina Fiocca at (445) 737-7416 or via email at Sabrina.Fiocca@dla.mil.