The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 12 rotary engine drums (NSN 7R-1720-009390107-EY) under a total small business set-aside. This procurement requires engineering source approval to ensure the quality of the part, as it is flight critical, and only approved sources will be considered for the contract award. Interested parties must submit their proposals along with the necessary source approval documentation by the specified deadline, and they can contact Brian T. Kent at (215) 697-0000 or via email at BRIAN.T.KENT.CIV@US.NAVY.MIL for further information. The delivery terms are FOB origin, and the solicitation emphasizes the importance of compliance with qualification requirements at the time of award.