The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of valve mid flow OBI, categorized under miscellaneous aircraft accessories and components. This procurement requires government source approval prior to award, and interested vendors must submit detailed proposals along with the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure. The items are critical for fleet support and are part of a spares buy in accordance with FAR Part 13, with early and incremental deliveries preferred. Proposals must be submitted via email to Gerard T. Weiss at GERARD.T.WEISS.CIV@US.NAVY.MIL by the specified due date, and offers lacking required data will not be considered for award.