The Department of Defense, through the Defense Logistics Agency, is seeking qualified suppliers for the manufacture of the C-135, F-108 Cooler, Lubricating, with a National Stock Number (NSN) of 2935011521702. This procurement involves the production of spare parts, specifically designed to cool the Integrated Drive Generator (IDG) oil, with dimensions of approximately 9 inches in length, 9 inches in width, and 8 inches in height, weighing around 8 pounds, and constructed from aluminum alloy and steel. The anticipated delivery of the required quantity, estimated between 7 to 38 units with a base estimate of 25, is expected to begin in November 2026, and interested vendors must be qualified prior to award consideration. For further inquiries, potential bidders can contact Lori Lumsden at lori.lumsden.1@us.af.mil or by phone at 405-734-0370, with proposals due within 30 days of the solicitation issuance.