The Department of Defense, through the Defense Logistics Agency (DLA) Aviation, is seeking proposals for the procurement of 41 units of the Flyball and Head Go, Part Number 570386-1, under solicitation SPE4A526R0108. This procurement is critical for aircraft engine fuel systems, and while specifications are not available, interested manufacturers must submit a complete source approval package if they are not an approved source, specifically ONTIC ENGINEERING & MANUFACTURING. The contract will be a firm-fixed price arrangement, with delivery required within 572 days after receipt of order to Cherry Point, NC, and the solicitation is expected to be issued on January 2, 2026, with a closing date of February 2, 2026. For further inquiries, interested parties can contact Sylvester P III Abramowicz at 445-737-5107 or via email at Sylvester.P.Abramowicz@dla.mil.