The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking quotes for the procurement of four units of the NSN 1660014127467 Heat Exchanger, Air. This solicitation is a Total Small Business Set-Aside, aimed at acquiring essential aerospace craft components and accessories that are critical for aircraft operations and maintenance. Interested vendors must submit their quotes electronically, as hard copies will not be provided, and the deadline for delivery to the DLA Distribution Depot in Oklahoma is set for 170 days after award. For inquiries, potential bidders can reach out via email to DibbsBSM@dla.mil, and further details can be accessed through the DLA's solicitation portal.