This is a proposed procurement for a one-year Indefinite Delivery Contract for air duct assemblies, with an aggregate order ceiling of $350,000 and an estimated 11 orders per year. The guaranteed minimum quantity is one unit. Delivery is required within 153 days after receipt of order, with shipments going to various DLA depots within and outside the continental United States. Quotes must be submitted electronically, and only an approved source is listed for the item.